taxonID	type	description	language	source
F0136C1340290152FF06FEF5FCFFFB92.taxon	diagnosis	Diagnosis. Female: Head longer than wide; mandible with weakly to moderately developed subapical tooth; labral distal process narrowly triangular; basal elevation orbicular to bilobed; lateral teeth absent; prementum not greatly elongate, less than seven times longer than wide; galeal apex lobed; galeal comb absent; galeal base reaching back to stipital base; hypostomal ridge carinate to lamellate; anterior angle rounded; malar length usually much longer than basal width of mandible although in a few species the malar space is as long as to much shorter than basal mandibular width (vide infra); epistomal sulcus acute to nearly orthogonal; ocelli not greatly enlarged; ocellar furrow absent; vertex not expanded or ridged behind ocelli; preoccipital ridge round- ed. Pronotal dorsal surface typically unmodified from most genera with dorsal ridge rounded and medially overlapped by mesoscutum (rarely inflated between lateral portions of pronotal dorsal surface so that there is a long horizontal surface with a gently rounded anterior edge dropping down onto pronotal collar); lateral ridge entirely absent; mesoscutal anterior border rounded; tegula oval; prosternum expanded, pushing posterior corners of propleurae and anterior corners of procoxae apart. Probasitarsal brush present; metabasitibial plate bordered on all sides, not strongly rimmed; inner metatibial spur with pectinate branches along rachis, with eight or fewer branches. Forewing marginal cell apex acute; hind wing with distal hamuli irregularly spaced (typically arranged 2 - 1 - 2 or 3 - 1 - 2). Basal area of propodeum as long as or longer than combined lengths of mesoscutellum and metanotum, weakly to strongly imbricate; propodeal pit narrow, not set into broad V-shaped notch. Male: Mandible simple; labrum without distal process; antenna long, reaching back to anterior through posterior borders of propodeum; second flagellomere longer than first flagellomere. Inner metatibial spur typically serrate, rarely ciliate or pectinate with short, thin branches. Metasoma typically elongate; SVII and SVIII with medio-apical projections; spiculum present and narrow; ventral surface of penis valve with prong; parapenial lobe absent; basal process of gonostylus absent; dorsal process of gonostylus typically reduced, with variable development of setae (typically with thickened elongate setae branched at their apices); ventral gonostylar process typically elaborately developed, with numerous sometimes thickened setae forming patches or fringes (secondarily simplified in a few species).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340290152FF06FEF5FCFFFB92.taxon	discussion	Comments. Some of the features historically believed to be of critical importance for defining Chlerogella are now understood to be rare among the diversity of species. For instance, the long and convex pronotal dorsal surface in C. elongaticeps is rare in the genus and does not fully characterize the clade. Similarly, the elongate malar space, while common across the genus, is not universal. Some of the more important characters that do hold are the elongate propodeum lacking striae or granular integument, the complete absence of the pronotal lateral ridge, a head that is longer than wide, a pectinate inner metatibial spur with eight or fewer branches, and an acute marginal cell. The related genus Chlerogelloides differs in that its species have a strongly acute epistomal sulcus that projects deeply into the clypeus as a thin lobe nearly reaching the clypeal apex and has a serrate inner metatibial spur in females, and a strongly doublecurved simple mandible, a shorter antenna, and the first flagellomere longer than the second in males. From Ischnomelissa the genus differs in the fewer branches of the inner metatibial spur (10 or more densely packed branches in Ischnomelissa) in females and the more elaborately developed gonostylar processes in males. All three of these genera share an expanded, diamond-shaped prosternum. In addition, the elongate propodeum lacking striae is common to these genera and the species of Chlerogelloides share with at least C. elongaticeps the inflated pronotal dorsal surface.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340290152FF06FEF5FCFFFB92.taxon	distribution	Distribution. The genus is distributed in the Andean region from Bolivia, through Perú and Ecuador, into Colombia, from there across to Venezuela (Maps 1 – 5), and northward into Central America as far North as Guanacaste Province, Costa Rica (refer to maps in Engel 2009 a). Floral records. MELASTOMATACEAE: Clidemia crenulata Gleason (C. clidemiae Engel); ORCHIDACEAE: Phragmopedium longifolium (Warsz. & Rchb. f.) Rolfe (Orchidaceae) (Chlerogella sp., identification of bee has not been confirmed as the material upon which the determination was made is unknown); RUBIACEAE: Psychotria pongoana Standl. (C. hypermeces sp. n.). One label of a female of C. oresbios collected in Venezuela indicates the specimen was captured at flowers of “ Corupelis ”. I have not been able to determine what plant genus this was intended to correspond to.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340260157FF06FB46FE6EFD82.taxon	description	Figs 2 – 8, 14 – 15, Map 1	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340260157FF06FB46FE6EFD82.taxon	materials_examined	Holotype. ♀, BOLIVIA: Cochabamba [Department], Cochabamba, 109 km E Yungas (Cochabamba – Villa Tunari Rd.), 1480 m, 17 ° 8 ' 50 " S, 65 ° 42 ' 29 " W, 8 – 12 February 1999, R. Hanley, ex: flight intercept trap (SEMC). Paratypes. BOLIVIA: 1 ♀, Cochabamba [Department], Cochabamba, 109 km E Yungas (Cochabamba – Villa Tunari Rd.), 1480 m, 17 ° 8 ' 50 " S, 65 ° 42 ' 29 " W, 8 – 12 February 1999, R. Hanley, ex: flight intercept trap (SEMC); 3 ♀♀, 1 ♁, Cochabamba [Department], Cochabamba, 109 km E Yungas (Cochabamba – Villa Tunari Rd.), 1480 m, 17 ° 8 ' 50 " S, 65 ° 42 ' 29 " W, 1 – 6 February 1999, F. Genier, ex: flight intercept trap (SEMC); 1 ♀, Cochabamba [Department], Cochabamba, 109 km E Yungas (Cochabamba – Villa Tunari Rd.), 1480 m, 17 ° 8 ' 50 " S, 65 ° 42 ' 29 " W, 1 – 6 Feb- Figures 2 – 4. Female of Chlerogella cochabambensis sp. n. 2 Lateral habitus 3 Facial aspect 4 Lateral aspect of head. ruary 1999, F. Genier, ex: flight intercept trap (MZSP); 3 ♀♀, 1 ♁, Cochabamba [Department], Cochabamba, 109 km E Yungas (Cochabamba – Villa Tunari Rd.), 1400 m, 17 ° 8 ' 52 " S, 65 ° 42 ' 54 " W, 8 – 12 February 1999, F. Genier, ex: flight intercept trap (SEMC); 1 ♀, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi, 1685 m, 15 ° 40 ' 19 " S, 67 ° 29 ' 35 " W, 7 – 15. iv. 2004 [7 – 15 April 2004], malaise traps, S. D. Gaimari & M. Hauser (CSCA). Figures 5 – 8. Male of Chlerogella cochabambensis sp. n. 5 Lateral habitus 6 Facial aspect 7 Lateral aspect of head 8 Apical sterna of metasoma.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340260157FF06FB46FE6EFD82.taxon	diagnosis	Diagnosis. Chlerogella cochabambensis is most similar to C. oresbios from Venezuela (vide infra). The former can be distinguished by the more dull and muted coloration, the more closely punctured mesoscutum, the distinct arching of 2 rs-m in the forewing, the structure of the SIV and terminalia in males (Figs 8, 14 – 15), and the slightly larger body size.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340260157FF06FB46FE6EFD82.taxon	description	Description. Female: Total body length 8.94 – 9.43 mm; forewing length 6.37 – 6.40 mm. Head length 2.60 – 2.66 mm, width 1.69 – 1.77 mm. Clypeus beginning just below lower tangent of compound eyes (Fig. 3). Malar space 34.4 – 35.8 % compound eye length (malar length 0.52 – 0.53 mm; compound eye length 1.47 – 1.51 mm) Map Ι. Collection localities for Bolivian Chlerogella. (Figs. 3 – 4). Upper interorbital distance 0.87 – 0.89 mm; lower interorbital distance 0.63 – 0.65 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.38 – 1.43 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by three times vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m gently arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell not narrowed anteriorly, anterior border of second submarginal cell along Rs about as along as that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with six branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 1 – 2 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to faintly imbricate integument in ocellocular area and vertex, with punctures separated by a puncture width; gena smooth with small punctures separated by 1 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum imbricate with small punctures separated by a puncture width or less on lateral thirds and along posterior border, medially punctures separated by 1 – 1.5 times a puncture width, anteromedially punctures becoming exceedingly faint to absent; mesoscutellum faintly imbricate with small punctures separated by a puncture width or less; metanotum imbricate with minute punctures separated by a puncture width or less. Preëpisternum faintly imbricate with small punctures separated by 1 – 3 times a puncture width; mesepisternum weakly imbricate with small punctures separated by 2 – 6 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex black, remainder of clypeus and head dark, dull metallic blue, nearly black in some individuals. Antenna dark brown. Mesosoma dark, dull metallic blue, nearly dark brown or black in some individuals (Fig. 2); tegula dark brown. Wing membranes weakly infumate; veins dark brown. Legs dark brown except apical tarsomeres slightly lighter. Metasoma dark brown, with apical margins of terga translucent brown. Pubescence white to slightly golden except intermingled with fuscous setae on mesoscutum, mesoscutellum, metanotum, TIV – VI, and SIV – VI, and dark fuscous to black on pro- and mesotibiae, pro- and mesotarsi, metatibia, and metatarsus. Male: As described for the female except as follows: Total body length 9.43 – 9.74 mm; forewing length 6.40 – 6.53 mm. Head length 2.63 – 2.67 mm, width 1.61 – 1.67 mm. Clypeus beginning below lower tangent of compound eyes (Fig. 6). Malar space 45.3 – 46.1 % compound eye length (malar length 0.63 – 0.65 mm; compound eye length 1.39 – 1.41 mm) (Figs 6 – 7). Upper interorbital distance 0.76 – 0.78 mm; lower interorbital distance 0.45 – 0.47 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere three times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields disrupted by narrow mediolongitudinal line of fine, minute trichoid sensilla for lengths of flagellomeres V – X and apically on flagellomere IV. Intertegular distance 1.33 – 1.38 mm; mesoscutellum weakly bigibbous. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV weakly produced medioapically, with narrow concave emargination between setose lobes, with narrow shallow medio-longitudinal furrow in apical half of disc, not bordered by carinae (Fig. 8); apical margin of SV weakly concave; apical margin of SVI emarginate; terminalia as depicted in figures 14 and 15. Mandible, labrum, and clypeal apex white. Areas of dark, dull metallic blue in female darker in male, nearly black and with faint hints of blue (Fig. 5). Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate and sinuous at apices. Apical margin of SIII with diffuse fringe of moderate-length white setae; SIV with small medioapical pads of short golden to fuscous setae bordering medial emargination; SV laterally with diffuse areas of long, inwardly-curved setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340260157FF06FB46FE6EFD82.taxon	etymology	Etymology. The specific epithet is taken from the Department of Bolivia in which the type series was collected.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134023014BFF06FD76FD92FE3B.taxon	description	Figs 9 – 13, 16 – 17, Map 1	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134023014BFF06FD76FD92FE3B.taxon	materials_examined	Holotype. ♁, BOLIVIA: Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi, 1685 m, 15 ° 40 ' 19 " S, 67 ° 29 ' 35 " W, 15 – 21. iv. 2004 [15 – 21 April 2004], malaise traps, S. D. Gaimari & M. Hauser (CSCA). Paratypes. BOLIVIA: 1 ♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi, 1685 m, 15 ° 40 ' 19 " S, 67 ° 29 ' 35 " W, 15 – 21. iv. 2004 [15 – 21 April 2004], malaise traps, S. D. Gaimari & M. Hauser (SEMC); 1 ♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi, 1685 m, 15 ° 40 ' 19 " S, 67 ° 29 ' 35 " W, 19. iv. 2004 [19 April 2004], S. D. Gaimari (CSCA); 2 ♁♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi, 1685 m, 15 ° 40 ' 19 " S, 67 ° 29 ' 35 " W, 7 – 15. iv. 2004 [7 – 15 April 2004], malaise traps, S. D. Gaimari & M. Hauser (CSCA); 1 ♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi, 1685 m, 15 ° 40 ' 19 " S, 67 ° 29 ' 35 " W, 7 – 15. iv. 2004 [7 – 15 April 2004], malaise traps, S. D. Gaimari & M. Hauser (SEMC).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134023014BFF06FD76FD92FE3B.taxon	diagnosis	Diagnosis. This is one of the largest species of Chlerogella currently known, sharing its prodigious size with its more northern cousin, C. hypermeces (vide infra). Chlerogella hauseri and C. hypermeces both approximate in size species of the superficially similar genus Chlerogas. Chlerogella hauseri can be distinguished by the combination of an extremely elongate head (Figs 9 – 11), a unique color pattern of the head and body (Figs 9, 11), a swollen metafemur (Fig. 12), the structure of the male SIV (Fig. 13) and terminalia (Figs 16 – 17).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134023014BFF06FD76FD92FE3B.taxon	description	Description. Male: Total body length 11.39 – 11.67 mm; forewing length 7.53 – 7.87 mm. Head length 3.39 – 3.54 mm, width 1.74 – 1.85 mm. Clypeus beginning below low- er tangent of compound eyes (Fig. 11). Malar space 59.3 – 64.6 % compound eye length (malar length 1.02 – 1.04 mm; compound eye length 1.61 – 1.72 mm) (Figs. 10 – 11). Upper interorbital distance 0.78 – 0.83 mm; lower interorbital distance 0.47 – 0.49 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere three Figures 9 – Ι 3. Male of Chlerogella hauseri sp. n. 9 Lateral habitus Ι 0 Lateral aspect of head ΙΙ Facial aspect Ι 2 Hind leg Ι 3 Apical sterna of metasoma. Figures Ι 4 – Ι 7. Male terminalia for Bolivian Chlerogella species Ι 4 Chlerogella cochabambensis sp. n., hidden and fused sterna VII and VIII Ι 5 C. cochabambensis sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) Ι 6 C. hauseri sp. n., hidden and fused sterna VII and VIII Ι 7 C. hauseri sp. n., genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1 mm. times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields disrupted by narrow mediolongitudinal line of fine, minute trichoid sensilla in small apical patches on flagellomeres IV – VIII and basal patches on flagellomeres IV – XI, basal and apical patches on flagellomere IV particularly small and basal patch on flagellomere IX longest. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper por- tion of preëpisternal sulcus; intertegular distance 1.43 – 1.48 mm; mesoscutellum weakly bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by five times vein width; 2 rs-m distad 2 m-cu by ten times vein width, 2 rs-m gently curved; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs shorter than that of third submarginal cell; posterior border of third submarginal cell nearly two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Profemur ventrally swollen; meso- and metafemora somewhat swollen (Fig. 12); inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV produced medioapically, with broad concave emargination between setose lobes (Fig. 13), without medio-longitudinal furrow; apical margin of SV with broad, shallow medioapical emargination; apical margin of SVI emarginate; terminalia as depicted in figures 16 and 17. Clypeus and supraclypeal area imbricate with weak punctures separated by 2 – 4 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to faintly imbricate integument in ocellocular area and vertex, with small punctures separated by 1 – 4 times a puncture width; gena faintly imbricate with small punctures separated by 1 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum weakly imbricate with minute punctures separated by 1 – 2.5 times a puncture width; mesoscutum coarsely imbricate with minute punctures separated by a puncture width or less, anteromedially punctures becoming faint to absent; mesoscutellum faintly imbricate with small punctures separated by 1 – 2 times a puncture width, separated by less than a puncture width on weak mesoscutellar tubercles; metanotum faintly imbricate with small punctures separated by a puncture width or less. Preëpisternum faintly imbricate with small punctures separated by 1 – 2 times a puncture width; mesepisternum faintly imbricate with small punctures separated by 2 – 5 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible and labrum pale yellow; clypeus and malar area alongside clypeus yellow (Figs 10 – 11), remainder of head shining metallic green, with some golden highlights. Scape and pedicel yellow, although the latter sometimes more brown and the former sometimes with some brown dorsally at apex; first flagellomere brown, remainder of flagellum dark brown. Mesosoma dark metallic green (Fig. 9), with very slight bluish tint on pleura, pronotal lobe yellowish brown (in holotype there is a yellowish spot on the upper third of the metepisternum and the lateral and posterior surfaces of the propodeum are yellowish brown); tegula translucent yellow brown. Wing membranes weakly infumate; veins yellowish brown except C and Sc + R dark brown. Legs yellow except procoxae metallic green as on remainder of mesosoma and brown marks dorsally on meso- and metatibiae and dorsally and ventrally on metafemur (in holotype metacoxa also has metallic green on outer surface and this same area is dark brown without metallic coloration in one of the paratypes). Metasoma dark brown except TI yellow with dark brown apical margin and TII with basolateral yellow spots; SI yellow; SII light brown to brown. Pubescence golden; typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofe- mur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate and sinuous at apices. Apical margin of SIII with diffuse fringe of moderate-length setae; SIV with small medioapical pads of short dark golden setae bordering medial emargination and lateral areas of more diffuse long, inwardly-curved setae; SV laterally with diffuse areas of long, inwardly-curved setae. Female: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134023014BFF06FD76FD92FE3B.taxon	etymology	Etymology. The specific epithet is a patronym honoring Dr. Martin Hauser who collected part of the type series, recognized the significance of the bees, and generously made the material available for study.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403F014BFF06FDA9FBF7FAE1.taxon	discussion	Comments. This species was placed without reservation in Chlerogella by Moure and Hurd (1987), who presumably had seen the type specimen. I attempted, without success, to locate the type in the Museum National d’Histoire Naturelle, Paris in 1996 and accordingly could not confirm this generic assignment nor provide a description for the species. Vachal’s original description gives the impression of a Chlerogella owing to the elongate head, small size (6 mm), and pectinate inner metatibial spur with five branches, but he does not provide sufficient detail for a more confident placement. No description of uniquely Chlerogella features such as the dorsal surface of the pronotum (modified in some species) or the propodeum are provided and the few elements given do not match ideally those species before me. Vachal’s descriptive notes come closest to C. nasus (Enderlein), but only in superficial details of coloration and given the significantly larger size for the latter I have preferred not to assume that the two are conspecific. Vachal’s holotype was collected near Callanga, Perú. Hopefully further collecting in the area will recover new material and the species may be adequately characterized.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403F014FFF06FA93FD4AFA8C.taxon	description	Figs 18 – 23, 39 – 41, Map 2	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403F014FFF06FA93FD4AFA8C.taxon	materials_examined	Holotype. ♀, PERÚ: Junin, Quebrada Mala Noche, c. 10 km W. San Ramon, 1300 – 1500 m, 9 – 12 vi. 1993 [9 – 12 June 1993], M. Cooper (COOP). Paratypes. PERÚ: 1 ♁, Junin, Quebrada Mala Noche, c. 10 km W. San Ramon, 1300 – 1500 m, 16. vii. 1990 [16 July 1990], M. Cooper (COOP); 2 ♁♁, Junin, Que- Figures Ι 8 – 20. Holotype female of Chlerogella arhyncha sp. n. Ι 8 Lateral habitus Ι 9 Facial aspect 20 Lateral aspect of head and anterior mesosoma. brada Mala Noche, c. 10 km W. San Ramon, 1300 – 1500 m, 9 – 12 vi. 1993 [9 – 12 June 1993], M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403F014FFF06FA93FD4AFA8C.taxon	diagnosis	Diagnosis. Chlerogella arhyncha, as its name suggests, is distinctive for the near absence of a discernible malar space, the compound eye abutting the mandibular base (Figs 19 – 20, 22 – 23). Figures 2 Ι – 23. Male of Chlerogella arhyncha sp. n. 2 Ι Lateral habitus 22 Facial aspect 23 Lateral aspect of head.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403F014FFF06FA93FD4AFA8C.taxon	description	Description. Female: Total body length 7.50 mm; forewing length 5.73 mm. Head length 1.90 mm, width 1.67 mm. Clypeus beginning above lower tangent of compound eyes (Fig. 19). Malar space 1.9 % compound eye length (malar length 0.026 mm; compound eye length 1.38 mm) (Figs 19 – 20). Upper interorbital distance 0.89 mm; lower interorbital distance 0.73 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal Map 2. Collection localities for Peruvian Chlerogella (note that C. azurea extends into southeastern Ecuador; vide etiam Map 3). sulcus; intertegular distance 1.22 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by five times vein width, 2 rs-m relatively straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs slightly shorter than that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with five branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 2 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to imbricate integument in ocellocular area and vertex, with punctures separated by a puncture width or less; gena finely imbricate with small punctures separated by 1 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 2 times a puncture width; mesoscutum strongly imbricate with small punctures separated by 1 – 1.5 times a puncture width on lateral thirds and posteriorly, anteromedially punctures becoming exceedingly faint to absent; mesoscutellum and metanotum imbricate with minute scattered punctures. Preëpisternum imbricate, weakly rugulose above; mesepisternum imbricate with small punctures separated by 2 – 4 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head dark metallic bluish green to greenish grey-blue. Antenna dark brown except ventral surface of scape lighter. Mesosoma dark metallic bluish green to greenish grey-blue (Fig. 18); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs dark brown. Metasoma dark brown, with apical margins of TIII – VI translucent brown. Pubescence white to slightly golden except dark fuscous on tibiae, tarsi, and apically on metasoma. Male: As described for the female except as follows: Total body length 7.20 – 7.25 mm; forewing length 5.33 – 5.40 mm. Head length 1.67 – 1.70 mm, width 1.51 – 1.53 mm. Malar space 2.1 % compound eye length (malar length 0.026 mm; compound eye length 1.22 – 1.23 mm) (Figs 22 – 23). Upper interorbital distance 0.78 – 0.79 mm; lower interorbital distance 0.52 – 0.54 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere two times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.07 – 1.10 mm. Inner metatibial spur minutely ciliate. Apical margin of SIII entire; apical margin of SIV entire, without furrow on disc; apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 39 and 41. Mandible, labrum, and clypeal apex pale yellow, remainder of head dark metallic blue with greenish cast in various places. Antenna brown except ventral surface of scape lighter. Mesosoma reddish brown (faded) with dark metallic blue or greenish blue dorsally and in places on pleura (specimen is clearly very faded) (Fig. 21). Legs brown except tibiae and tarsi lighter. Metasoma dark reddish brown with strong metallic blue highlights on terga. Pubescence white, with typical gender pilosity. Apical margin of SIII without fringe; SIV with diffuse apicolateral areas of long, white setae; SV laterally with diffuse areas of long, inwardly-curved setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403F014FFF06FA93FD4AFA8C.taxon	etymology	Etymology. The specific epithet is a combination of the Greek prefix a (meaning, “ without ”) and the term rhynchos (meaning, “ snout ”).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403B014DFF06FA7CFE55F9A2.taxon	description	Figs 24 – 26, Map 2	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403B014DFF06FA7CFE55F9A2.taxon	materials_examined	Holotype. ♀, PERÚ: Dept. Madre de Dios, Amazonas Lodge, N. Atalaya, 12 º 52.2 ' S, 71 º 22.6 ' W, 480 m, 10 – 13 - XI- 2007 [10 – 13 November 2007], D. Brzoska, ex: flight intercept trap (MUSM). Figures 24 – 26. Holotype female of Chlerogella vachali sp. n. 24 Lateral habitus 25 Facial aspect 26 Lateral aspect of head.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403B014DFF06FA7CFE55F9A2.taxon	diagnosis	Diagnosis. Among short-headed species of Chlerogella, C. vachali can be recognized by the combination of the generally dark brown metasoma with an amber spot centrally on the first metasomal tergum, the brilliant metallic blue coloration of the head and mesosoma (Figs 24 – 26), the more widely spaced punctures of the mesoscutum, and its small body size.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403B014DFF06FA7CFE55F9A2.taxon	description	Description. Female: Total body length 6.38 mm; forewing length 4.40 mm. Head length 1.64 mm, width 1.30 mm. Clypeus beginning above lower tangent of compound eyes. Malar space 7.2 % compound eye length (malar length 0.078 mm; compound eye length 1.09 mm) (Figs 25 – 26). Upper interorbital distance 0.73 mm; lower interorbital distance 0.52 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 0.99 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by 3.5 times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by five times vein width, 2 rs-m relatively straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell narrowed anteriorly, anterior border of second submarginal cell along Rs about one-half as long as that of third submarginal cell; posterior border of third submarginal cell about two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with four branches (not including apical portion of rachis). Clypeus and supraclypeal area finely imbricate with weak punctures separated by a puncture width or less; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to smooth integument in ocellocular area and vertex, with punctures separated by 0.5 – 2 times a puncture width; gena smooth with small punctures separated by 1 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum faintly imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum smooth with small punctures separated by 1 – 2 times a puncture width, anteromedially punctures becoming faint to absent and finely imbricate; mesoscutellum smooth with minute punctures separated by 1.5 – 3.5 times a puncture width; metanotum smooth with scattered minute punctures. Preëpisternum smooth with small punctures separated by 1 – 3 times a puncture width; mesepisternum smooth with small punctures separated by 2 – 6 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head brilliant metallic azurite blue. Antenna dark brown except basal half of scape yellow brown. Mesosoma brilliant metallic azurite blue except pronotal lobe brown (Fig. 24); tegula dark brown. Wing membranes hyaline; veins dark brown. Legs dark brown except procoxa brilliant metallic azurite blue. Metasoma dark brown, with apical margins of terga translucent light brown and medial anterior-facing surface of TI amber brown. Pubescence white to slightly golden except intermingled with fuscous setae at apex of metasoma. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13403B014DFF06FA7CFE55F9A2.taxon	etymology	Etymology. The specific epithet is a patronym honoring Joseph Vachal (1838 – 1911), an early pioneer in the systematics of Halictidae, particularly the South American fauna, and who likely described the first species of Chlerogella from an individual in Perú (C. buyssoni, vide supra).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340360140FF06FF43FED9FEEC.taxon	materials_examined	Holotype. ♀, PERÚ: Departement Cuzco, Cosnipata-Ebene, 1000 m, 3 December 1900, S. V. Garlepp (ZMHB). Additional material. PERÚ: 1 ♀, Dept. Cusco, Cock of the Rock Lodge, NE Paucartambo, 13 º 03.3 ' S, 71 º 32.7 ' W, 1120 m, 4 – 9 - XI- 2007 [4 – 9 November 2007], D. Brzoska, ex: flight intercept trap (SEMC).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340360140FF06FF43FED9FEEC.taxon	diagnosis	Diagnosis. Chlerogella nasus is distinctive for the combination of its elongate malar space and dark brown coloration, with weak metallic highlights (Figs 27 – 29).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340360140FF06FF43FED9FEEC.taxon	description	Description. Female: Total body length 9.44 – 9.64 mm; forewing length 6.80 – 7.04 mm. Head length 2.58 – 2.60 mm, width 1.76 – 1.78 mm. Clypeus beginning just below lower tangent of compound eyes. Malar space 35.6 – 37.2 % compound eye length (malar length 0.52 – 0.55 mm; compound eye length 1.46 – 1.48 mm) (Figs. 28 – 29). Upper interorbital distance 0.88 – 0.89 mm; lower interorbital distance 0.63 – 0.64 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.35 – 1.40 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by five times vein width, 2 rs-m gently arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs slightly shorter than that of third submarginal cell; posterior border of third submarginal cell slightly more than 1.5 times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with four branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 2 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to imbricate integument in ocellocular area and vertex, with punctures separated by a puncture width or less; gena imbricate with small punctures separated by a puncture width; postgena imbricate and impunctate. Pronotum imbricate with scattered minute punctures; mesoscutum with small contiguous punctures, anteromedially punctures becoming weaker and integument distinctly imbricate; mesoscutellum and metanotum with small contiguous punctures. Preëpisternum strongly imbricate with coarse punctures separated by a puncture width or less; mesepisternum strongly imbricate with weak punctures separated by 2 – 5 times a puncture width; metepisternum finely imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Figures 27 – 29. Female of Chlerogella nasus (Enderlein). 27 Lateral habitus 28 Facial aspect 29 Lateral aspect of head. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown to black, remainder of clypeus and head dark brown to nearly black with weak metallic copper-green highlights. Antenna dark brown except base of scape brown. Mesosoma dark brown to nearly black with weak metallic copper-green highlights (Fig. 27); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs amber brown except procoxa dark brown with weak metallic copper-green highlights. Metasoma dark brown except amber brown on TI, TII except apical margin dark brown, and basal third of TIII (apical two-thirds dark brown). Pubescence golden except intermingled with fuscous setae apically on metasoma. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340340146FF06FE9CFF59FEC1.taxon	description	Figs 1, 30 – 32, Map 2	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340340146FF06FE9CFF59FEC1.taxon	materials_examined	Holotype. ♀, PERÚ: Junin, Quebrada, Mala Noche, c. 10 km West San Ramon, 1300 – 1500 m, 9 – 12. vi. 1993, M. Cooper (COOP). Paratypes. PERÚ: 2 ♀♀, Junin, Quebrada, Mala Noche, c. 10 km West San Ramon, 1300 – 1500 m, 9 – 12. vi. 1993, M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340340146FF06FE9CFF59FEC1.taxon	diagnosis	Diagnosis. Chlerogella rostrata belongs to a complex of very similar metallic blue species with elongate malar spaces. It is most similar to C. materdonnae but differs by the more dull, non-shining caerulean blue color of the integument (Figs 30 – 31; cf. Figs 55 – 56) and the more densely spaced punctures ventrally on the mesepisternum.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340340146FF06FE9CFF59FEC1.taxon	description	Description. Female: Total body length 9.53 – 9.65 mm; forewing length 7.0 – 7.15 mm. Head length 2.73 – 2.75 mm, width 1.88 – 1.91 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 38.5 – 38.6 % compound eye length (malar length 0.60 – 0.61 mm; compound eye length 1.56 – 1.58 mm) (Figs 31 – 32). Upper interorbital distance 0.88 – 0.89 mm; lower interorbital distance 0.68 – 0.69 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.51 – 1.52 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by three times vein width; 2 rs-m distad 2 m-cu by nine times vein width, 2 rs-m relatively straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about as along as that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with four branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 1.5 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to imbricate integument in ocellocular area and vertex, with punctures separated by a puncture width or less; gena finely imbricate with small punctures separated by 0.5 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum imbricate with punctures separated by a puncture width or less on lateral thirds and posteriorly, anteromedially punctures becoming exceedingly faint to absent; mesoscutellum finely imbricate with small punctures separated by a puncture Figures 30 – 32. Holotype female of Chlerogella rostrata sp. n. 30 Lateral habitus 3 Ι Facial aspect 32 Lateral aspect of head. width or less; metanotum imbricate with minute punctures separated by a puncture width or less. Preëpisternum finely imbricate with small punctures separated by 1 – 3 times a puncture width; mesepisternum finely imbricate with punctures widely spaced in upper half, separated by 2 – 5 times a puncture width, blending to noticeably more dense posteriorly and ventrally, separated by 0.5 – 2 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex black, remainder of clypeus and head dark, dull metallic caerulean blue (Fig. 31). Antenna dark brown. Mesosoma dark, dull metallic caerulean blue (Fig. 30); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs dark brown. Metasoma dark brown. Pubescence white except intermingled with dark fuscous setae on metatibia and with dark fuscous setae predominant on tarsi, apicalmost metasomal segments, and pro- and mesotibiae. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340340146FF06FE9CFF59FEC1.taxon	etymology	Etymology. The specific epithet is taken from the Latin term rostratus, meaning “ beaked ”.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134032017BFF06FEB3FBE8FD17.taxon	materials_examined	Holotype. ♁; PERÚ: Departement Cuzco, Cosnipata-Ebene, 1000 m, 5 January 1901, S. V. Garlepp (ZMHB). Additional material. PERÚ: 1 ♀, Huanuco Dept., P. N. Tingo Maria vic cueva d., Lechuzas, 15 January 1983, A. Newton & M. Thayer (SEMC); 1 ♀, Huanuco Dept., Tingo Maria, 30 - 1 - 1984 [30 January 1984], L. Huggert (PMAE); 1 ♀, Tingo Maria, 20 – 27. i. 1968 [20 – 27 January 1968], A. Garcia & C. Porter (SEMC); 1 ♀, 2 ♁♁, Tingo Maria, 620 m, 5 – 12. x. 1964 [5 – 12 October 1964], C. C. Porter (SEMC); 1 ♀, Dept. Cusco, Cock of the Rock Lodge, NE Paucartambo, 13 º 03.3 ' S, 71 º 32.7 ' W, 1120 m, 4 – 9 - XI- 2007 [4 – 9 November 2007], D. Brzoska, ex: flight intercept trap (SEMC). ECUADOR: 1 ♀, Morona-Santiago, Cord. de Cutucu, 6 km E Macas, 1000 m, 12. viii. 1990 [12 August 1990], M. Cooper (COOP); 1 ♁, Zamora [Province], Zamora 1200 m, xi- 23 - 1970, L. Pena (AMNH).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134032017BFF06FEB3FBE8FD17.taxon	diagnosis	Diagnosis. Chlerogella azurea belongs to a complex of exceptionally similar metallic blue species with elongate heads. Among those species in this complex with bright azurite blue coloration, C. azurea is most similar to C. agaylei in which females are virtually indistinguishable, although the former tends to be slightly more lighter blue in some individuals (e. g., Fig. 33, although some approximate that of C. agaylei) and the scape tends to have some lighter coloration basally. The unmodified SIV in males makes them easy to distinguish from C. agaylei.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134032017BFF06FEB3FBE8FD17.taxon	description	Description. Female: Total body length 7.95 – 8.23 mm; forewing length 5.40 – 5.61 mm. Head length 2.39 – 2.50 mm, width 1.40 – 1.46 mm. Clypeus beginning well below lower tangent of compound eyes. Malar space 41.4 – 41.8 % compound eye length (malar length 0.55 – 0.56 mm; compound eye length 1.33 – 1.34 mm) (Figs. 34 – 35). Upper interorbital distance 0.73 – 0.75 mm; lower interorbital distance 0.47 – 0.49 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.25 – 1.30 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by three times vein width; 2 rs-m distad 2 m-cu by seven times vein width, 2 rs-m relatively straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell Figures 33 – 35. Female of Chlerogella azurea (Enderlein), comb. n. 33 Lateral habitus 34 Facial aspect 35 Lateral aspect of head. slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about as along as that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with six branches (not including apical portion of rachis). Clypeus and supraclypeal area finely imbricate with weak punctures separated by 0.5 – 2 times a puncture width; face with small, contiguous punctures, more widely Figures 36 – 38. Male of Chlerogella azurea (Enderlein), comb. n. 36 Lateral habitus 37 Facial aspect 38 Lateral aspect of head. spaced in malar space; punctures of face blending to imbricate integument in ocellocular area and vertex, with punctures separated by 1 – 2 times a puncture width; gena finely imbricate with small punctures separated by 0.5 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum imbricate with punctures separated by a puncture width or less on lateral thirds and posteriorly, anteromedially punctures becoming exceedingly faint to absent; mesoscutellum finely imbricate with small punctures separated by a puncture width or less; metanotum imbricate with minute punctures separated by Figures 39 – 44. Male terminalia for Peruvian Chlerogella species [note: C. azurea (Enderlein), comb. n., also has been recorded from southeastern Ecuador, vide Map 3]. 39 Chlerogella arhyncha sp. n., hidden and fused sterna VII and VIII 40 Detail of volsella for C. arhyncha sp. n. 4 Ι C. arhyncha sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) 42 C. azurea, hidden and fused sterna VII and VIII 43 Detail of volsella for C. azurea 44 C. azurea, genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1 mm. a puncture width or less. Preëpisternum finely imbricate with small punctures separated by 1 – 3 times a puncture width; mesepisternum smooth and shining to faintly imbricate with weak punctures separated by 2 – 5 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex black, remainder of clypeus and head brilliant metallic azurite blue, with purple highlights. Antenna dark brown. Mesosoma brilliant metallic azurite blue, with purple highlights (Fig. 33); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs dark brown. Metasoma dark brown. Map 3. Collection localities for Ecuadorian Chlerogella (note that C. azurea has been captured principally in Perú and C. hypermeces in Colombia; vide etiam Maps 2 & 4). Pubescence white except intermingled with dark fuscous setae on metatibia and with dark fuscous setae predominant on tarsi, apicalmost metasomal segments, and pro- and mesotibiae. Male: As described for the female except as follows: Total body length 8.02 – 8.10 mm; forewing length 5.33 – 5.41 mm. Head length 2.42 – 2.45 mm, width 1.33 – 1.36 mm. Clypeus beginning well below lower tangent of compound eyes. Malar space 47.6 – 48 % compound eye length (malar length 0.60 mm; compound eye length 1.25 – 1.26 mm) (Figs 37 – 38). Upper interorbital distance 0.65 – 0.66 mm; lower interorbital distance 0.34 – 0.35 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere two times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.07 – 1.10 mm; mesoscutellum not bigibbous. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV entire or faintly concave, without furrow in apical half of disc; apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 42 – 44. Mandible, labrum, and clypeal apex white, often with spot of white in malar space near mandibular base; scape yellow ventrally. Purple coloration stronger in some speci- mens (resulting from fading of darker underlying integument to a reddish brown shade which with the azurite blue results in a metallic purple coloration: e. g., Fig. 36). Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate, longer than metatibial width. Apical margin of SIII with diffuse fringe of moderate-length white setae; SIV with diffuse medioapical areas of long setae; SV similar to SIV although setae even more diffuse.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134032017BFF06FEB3FBE8FD17.taxon	discussion	Comment. The elongate head of the holotype and sparse description of Enderlein (1903) is perhaps what misled Moure and Hurd (1987) to transfer this species to Caenohalictus in the Caenohalictini. During a study of Caenohalictus by B. W. T. Coelho she borrowed the holotype and discovered that the specimen belongs to the Augochlorini, not the Caenohalictini, and was indeed a species of Chlerogella. I am grateful to her for bringing this to my attention so that I was able to examine Enderlein’s specimen, transfer it to the genus Chlerogella, and properly associate it among its relatives.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400F0179FF06FCC5FD2BFCD1.taxon	description	Figs 45 – 47, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400F0179FF06FCC5FD2BFCD1.taxon	materials_examined	Holotype. ♀, ECUADOR: Napo, Chaco, 11 March 1983, Masner and Sharkey (SEMC). Paratype. ECUADOR: 1 ♀, Napo, Chaco, 11. iii. 1983 [11 March 1983], Masner & Sharkey (PMAE).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400F0179FF06FCC5FD2BFCD1.taxon	diagnosis	Diagnosis. The female of C. dolichorhina is superficially most similar to C. agaylei but can be distinguished by the strongly and coarsely imbricate mesepisternum and the more dull and non-shining blue coloration, with only faint purple highlights (Figs. 45 – 47).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400F0179FF06FCC5FD2BFCD1.taxon	description	Description. Female: Total body length 8.85 mm; forewing length 6.53 mm. Head length 2.71 mm, width 1.69 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 45.9 % compound eye length (malar length 0.68 mm; compound eye length 1.48 mm) (Figs 46 – 47). Upper interorbital distance 0.83 mm; lower interorbital distance 0.57 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.3 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by three times vein width; 2 rs-m distad 2 m-cu by nine times vein width, 2 rs-m relatively straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about as along as that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than an- Figures 45 – 47. Holotype female of Chlerogella dolichorhina sp. n. 45 Lateral habitus 46 Facial aspect 35 Lateral aspect of head. terior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with seven branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 1 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to finely imbricate integument in ocellocular area and vertex, with punctures separated by 0.5 – 2 times a puncture width; gena finely imbricate with small punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum imbricate with punctures separated by a puncture width or less on lateral thirds and posteriorly, anteromedially punctures becoming exceedingly faint to absent; mesoscutellum imbricate with small punctures separated by a puncture width or less; metanotum imbricate with minute punctures separated by a puncture width or less. Preëpisternum finely imbricate with small punctures separated by 1 – 3 times a puncture width; mesepisternum strongly and coarsely, relatively dull, with coarse, shallow punctures separated by 1.5 – 4 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex black, remainder of clypeus and head dark metallic azurite blue, with weak purple highlights. Antenna dark brown. Mesosoma dark metallic azurite blue, with weak purple highlights (Fig. 45); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs dark brown. Metasoma dark brown. Pubescence white except intermingled with dark fuscous setae on metatibia and with dark fuscous setae predominant on tarsi, apicalmost metasomal segments, and pro- and mesotibiae. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400F0179FF06FCC5FD2BFCD1.taxon	etymology	Etymology. The specific epithet is a combination of the Greek terms dolichos, meaning “ long ”, and rhinos, meaning “ nose ”.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400D017CFF06FC83FE81FB27.taxon	description	Figs 48 – 54, 68 – 69, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400D017CFF06FC83FE81FB27.taxon	materials_examined	Holotype. ♁, ECUADOR: Napo, 1200 m, km 7.3 Sarayacu-Loreto rd., 20 July 1994, F. Génier, ex: feces trap (SEMC). Paratype. ECUADOR: 1 ♀, same data as holotype (SEMC).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400D017CFF06FC83FE81FB27.taxon	diagnosis	Diagnosis. Females of C. agaylei superficially resemble those of C. dolichorhina from which the former can be recognized by the smooth and shining integument of the mesepisternum and the brilliant integumental coloration of the head and mesosoma. Females of C. agaylei are also very similar to those of C. azurea in which the former tends to be slightly more dark blue and the antenna uniformly dark brown. The male can be distinguished from that of C. materdonnae by the strong azurite coloration and the structure of SIV (Fig. 54) and the terminalia (Figs 68 – 69) and from C. azurea by the structure SIV.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400D017CFF06FC83FE81FB27.taxon	description	Description. Female: Total body length 8.45 mm; forewing length 5.47 mm. Head length 2.45 mm, width 1.54 mm. Clypeus beginning just below lower tangent of compound eyes. Malar space 44.8 % compound eye length (malar length 0.60 mm; compound eye length 1.34 mm) (Figs 49 – 50). Upper interorbital distance 0.73 mm; lower interorbital distance 0.52 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.25 mm; mesoscutellum weakly convex, not bigibbous. Basal vein Figures 48 – 50. Paratype female of Chlerogella agaylei sp. n. 48 Lateral habitus 49 Facial aspect 50 Lateral aspect of head. distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by eight times vein width, 2 rs-m weakly arched; first submarginal cell long- er than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about as along as that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with five branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 1.5 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to imbricate integument in ocellocular area Figures 5 Ι – 54. Holotype male of Chlerogella agaylei sp. n. 5 Ι Lateral habitus 52 Facial aspect 53 Lateral aspect of head 54 Apical sterna of metasoma. and vertex, with punctures separated by 0.5 – 2 times a puncture width; gena finely imbricate with small punctures separated by 0.5 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum imbricate with punctures separated by a puncture width or less on lateral thirds and posteriorly, anteromedially punctures becoming exceedingly faint to absent; mesoscutellum finely imbricate with small punctures separated by a puncture width or less; metanotum imbricate with minute punctures separated by a puncture width or less. Preëpisternum finely imbricate with small punctures separated by 1 – 3 times a puncture width; mesepisternum faintly imbricate and shining with weak punctures separated by 2 – 5 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head azurite blue with strong purple highlights (Fig. 49). Antenna dark brown. Mesosoma azurite blue, with purple highlights but weaker than those of head (Fig. 48); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs dark brown. Metasoma dark brown. Pubescence white except intermingled with dark fuscous setae on metatibia and with dark fuscous setae predominant on tarsi, apicalmost metasomal segments, and pro- and mesotibiae. Male: As described for the female except as follows: Total body length 8.88 mm; forewing length 5.47 mm. Head length 2.55 mm, width 1.54 mm. Clypeus beginning just below lower tangent of compound eyes. Malar space 46.7 % compound eye length (malar length 0.63 mm; compound eye length 1.35 mm) (Figs 52 – 53). Upper interorbital distance 0.76 mm; lower interorbital distance 0.39 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere two times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.28 mm; mesoscutellum not bigibbous. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV with short, narrow median projection that is deeply emarginate medially (to form two very narrow paramedial projections) (Fig. 54); apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 68 and 69. Mandible, labrum, and very narrow longitudinal mark at clypeal apex pale yellow. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate, longer than metatibial width. Apical margin of SIII with diffuse fringe of moderate-length white setae; SIV with dense, short patches of fuscous setae on medioapical projections; SV with diffuse apicolateral areas of long white setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13400D017CFF06FC83FE81FB27.taxon	etymology	Etymology. The specific epithet is a patronym honoring my father, Rev. A. Gayle Engel.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340080170FF06FAD5FBF7FE52.taxon	description	Figs 55 – 61, 70 – 71, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340080170FF06FAD5FBF7FE52.taxon	materials_examined	Holotype. ♁, ECUADOR: Tungurahua, Rio Pastaza, Pailon del Diablo, 5 km SE, II- 18 - 1996, J. S. Ascher, flying along forest trail (SEMC). Paratypes. ECUADOR: 1 ♁, Tungurahua, Pastaza Valley, Rio Topo, 1100 m, 29. i. 1986 [29 January 1986], M. Cooper (COOP); 1 ♀, Tungurahua, Pastaza Valley, Rio Topo, 1100 m, 20. xii. 1982 [20 December 1982], M. Cooper (COOP); 1 ♁, Napo, 5 km NE El Chaco, 11. ii. 1983 [11 February 1983], L. Huggert (SEMC). Figures 55 – 57. Female of Chlerogella materdonnae sp. n. 55 Lateral habitus 56 Facial aspect 57 Lateral aspect of head.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340080170FF06FAD5FBF7FE52.taxon	diagnosis	Diagnosis. Chlerogella materdonnae belongs to a complex of very similar metallic blue species with elongate malar spaces. The female is most similar to C. rostrata but differs by the brilliant and shiny caerulean blue color of the integument (Figs 55 – 56; cf. Figs 30 – 31) and the uniformly punctured mesepisternum (not more densely spaced ventrally as in C. rostrata, vide supra). The male can be distinguished from that of C. agalyei by the caerulean coloration and the structure of SIV (Fig. 61) and the terminalia (Figs 70 – 71). Figures 58 – 6 Ι. Male of Chlerogella materdonnae sp. n. 58 Lateral habitus 59 Facial aspect 60 Lateral aspect of head 6 Ι Apical metasomal sterna.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340080170FF06FAD5FBF7FE52.taxon	description	Description. Female: Total body length 9.11 mm; forewing length 6.20 mm. Head length 2.71 mm, width 1.74 mm. Clypeus beginning at lower tangent of compound eyes. Malar space 43.9 % compound eye length (malar length 0.65 mm; compound eye length 1.48 mm) (Figs 56 – 57). Upper interorbital distance 0.83 mm; lower interorbital distance 0.63 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.43 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rsm distad 2 m-cu by nine times vein width, 2 rs-m weakly arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs slightly longer than that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with six branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 1.5 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to imbricate integument in ocellocular area and vertex, with punctures separated by 1 – 2 times a puncture width; gena finely imbricate with small punctures separated by 0.5 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum imbricate with punctures separated by a puncture width or less on lateral thirds and posteriorly, anteromedially punctures becoming exceedingly faint to absent; mesoscutellum finely imbricate with small punctures separated by a puncture width or less; metanotum imbricate with minute punctures separated by a puncture width or less. Preëpisternum finely imbricate with small punctures separated by 1 – 3 times a puncture width; mesepisternum imbricate with punctures separated by 2 – 4 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head light metallic caerulean blue. Antenna dark brown. Mesosoma light metallic caerulean blue (Fig. 55); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs dark brown. Metasoma dark brown. Pubescence white except intermingled with dark fuscous setae on metatibia and with dark fuscous setae predominant on tarsi, apicalmost metasomal segments, and pro- and mesotibiae. Male: As described for the female except as follows: Total body length 9.0 – 9.18 mm; forewing length 6.13 – 6.15 mm. Head length 2.58 – 2.60 mm, width 1.59 – 1.60 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 50.7 – 51 % compound eye length (malar length 0.73 mm; compound eye length 1.43 – 1.44 mm) (Figs 59 – 60). Upper interorbital distance 0.76 – 0.78 mm; lower interorbital distance 0.42 – 0.43 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere 2.4 times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.20 – 1.22 mm; mesoscutellum weakly bigibbous. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV broadly concave medially and produced into short broad lobes lateral to concavity, without furrow in apical half of disc (Fig. 61); apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 70 and 71. Mandible, labrum, and clypeal apex brown. Head and mesosoma light metallic caerulean blue except more deeply azurite colored on face and mesoscutum. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of me- tatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia not particularly elongate, length of such setae not or scarcely longer than metatibial width. Apical margin of SIII with diffuse fringe of moderate-length white setae; SIV with small medioapical pads of short fuscous setae bordering medial emargination; SV with diffuse areas of moderate-length to long white setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340080170FF06FAD5FBF7FE52.taxon	etymology	Etymology. The specific epithet is a matronym combining the Latin term mater, meaning “ mother ”, and Donna, in loving honor of my mother, Mrs. Donna G. Engel.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340040174FF06FE06FDA5F94E.taxon	description	Figs 62 – 67, 72 – 73, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340040174FF06FE06FDA5F94E.taxon	materials_examined	Holotype. ♀, ECUADOR: Pichincha, Nambillo Valley near Mindo, 1450 m, 8. vi. 1987 [8 June 1987], M. Cooper (COOP). Paratypes. ECUADOR: 1 ♀, 1 ♁, Pichincha, Nambillo Valley near Mindo, 1450 m, 2. vii. 1987 [2 July 1987], M. Cooper (COOP); 1 ♁, Pichincha, Nambillo Valley near Mindo, 1450 m, 15. viii. 1987 [15 August 1987], M. Cooper (COOP); 1 ♁, Pichincha, Nambillo Valley near Mindo, 1450 m, 16. viii. 1987 [16 August 1987], M. Cooper (COOP); 1 ♁, Pichincha, Los Bancos, 1100 m, 1. vi. 1987 [1 June 1987], M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340040174FF06FE06FDA5F94E.taxon	diagnosis	Diagnosis. Chlerogella eumorpha may be recognized most easily by the combination of a moderately long malar space (Figs 63 – 64, 66 – 67) and brilliant metallic blue on the head and mesosoma (Figs 62 – 67).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340040174FF06FE06FDA5F94E.taxon	description	Description. Female: Total body length 7.49 – 7.52 mm; forewing length 5.67 – 5.79 mm. Head length 2.29 – 2.30 mm, width 1.69 – 1.71 mm. Clypeus beginning at lower tangent of compound eyes. Malar space 17.6 – 17.7 % compound eye length (malar length 0.26 mm; compound eye length 1.47 – 1.48 mm) (Figs 63 – 64). Upper interorbital distance 0.78 mm; lower interorbital distance 0.57 – 0.58 mm. Upper portion of pronotum medially depressed, slightly elongate, medially less than an ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.31 – 1.35 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by five times vein width, 2 rs-m gently arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell not narrowed anteriorly, anterior border of second submarginal cell along Rs slightly longer than that of third submarginal cell; posterior border of third submarginal cell about two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with four branches (not including apical portion of rachis). Clypeus and supraclypeal area faintly imbricate with punctures separated by 1 – 2 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space and bordering supraclypeal area; punctures of face blending to smooth in- Figures 62 – 64. Holotype female of Chlerogella eumorpha sp. n. 62 Lateral habitus 63 Facial aspect 64 Lateral aspect of head. tegument in ocellocular area and vertex, with punctures separated by 1 – 2 times a puncture width; gena smooth with minute punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum finely imbricate with scattered minute punctures; mesoscutum smooth with small punctures separated by a puncture width, anteromedially punctures becoming exceedingly faint to absent and integu- Figures 65 – 67. Paratype male of Chlerogella eumorpha sp. n. 65 Lateral habitus 66 Facial aspect 67 Lateral aspect of head. ment finely imbricate; mesoscutellum and metanotum smooth with small punctures separated by a puncture width. Preëpisternum smooth with small punctures separated by 1 – 3 times a puncture width; mesepisternum smooth with small punctures separated by 2 – 6 times a puncture width, punctures weak; metepisternum smooth. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head brilliant metallic azurite blue, with Figures 68 – 73. Male terminalia for some Ecuadorian Chlerogella species. 68 Chlerogella agaylei sp. n., hidden and fused sterna VII and VIII 69 C. agaylei sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) 70 C. materdonnae sp. n., hidden and fused sterna VII and VIII 7 Ι C. materdonnae sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) 72 C. eumorpha sp. n., hidden and fused sterna VII and VIII 73 C. eumorpha sp. n., genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1 mm. purple highlights. Antenna dark brown except extreme base of scape lighter. Mesosoma brilliant metallic azurite blue, with purple highlights (Fig. 62); tegula dark brown. Wing membranes weakly infumate; veins dark brown. Legs dark brown except procoxa metallic blue. Metasoma dark brown, with apical margins of TII – VI translucent brown. Pubescence white to slightly golden except fuscous setae on tarsi, tibiae, inner surface of metatibia and fuscous setae intermingled on apical metasomal segments. Male: As described for the female except as follows: Total body length 8.24 – 8.26 mm; forewing length 5.73 – 5.93 mm. Head length 2.24 – 2.32 mm, width 1.56 – 1.61 mm. Clypeus beginning just above lower tangent of compound eyes. Malar space 17.6 – 17.8 % compound eye length (malar length 0.26 mm; compound eye length 1.46 – 1.48 mm) (Figs 66 – 67). Upper interorbital distance 0.70 – 0.73 mm; lower interorbital distance 0.36 – 0.39 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere 3.4 times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.20 – 1.22 mm; mesoscutellum not bigibbous. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV medially broadly and weakly concave, with short, broad, setose lobes produced on either side of apical concavity, with disc weakly depressed medially bordering concavity; apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 72 and 73. Mandible, labrum, and clypeal apex pale yellow. Legs somewhat lighter than in female and with some metallic blue highlights. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; posterior surface of procoxa, inner surfaces of trochanters (particularly dense on protrochanter), mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate and sinuous at apices. Apical margin of SIII with diffuse fringe of moderate-length white setae; SIV with small medioapical pads of short fuscous setae on lobes bordering medial concavity; SV laterally with diffuse areas of long, inwardly-curved setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340040174FF06FE06FDA5F94E.taxon	etymology	Etymology. The specific epithet is taken from the Greek term eumorpha, meaning “ shapely ”.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340040174FF06FE06FDA5F94E.taxon	discussion	Comments. Chlerogella eumorpha is remarkably similar to C. elysia (vide infra), which occurs in the same general region, despite the significant differences in their coloration. The terminalia of males do show some differences that appear to be species specific and no Augochlorini are currently known to have such dramatic differences in coloration (e. g., see examples discussed by Engel and Gonçalves 2010). Thus, for the time being I conservatively consider these extreme morphs to be separate species rather than lump them under a single epithet. Certainly discovery of the nests and further investigation into the biology of these seemingly rare bees will help to further clarify the circumscription of this taxon.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134001016AFF06FF43FCCCFAA8.taxon	description	Figs 74 – 76, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134001016AFF06FF43FCCCFAA8.taxon	materials_examined	Holotype. ♀, ECUADOR: Pichincha, Mindo, 1300 m, 7. vi. 1987 [7 June 1987], M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134001016AFF06FF43FCCCFAA8.taxon	diagnosis	Diagnosis. Chlerogella borysthenis from the northwestern side of the Ecuadorian Andes is superficially similar to C. breviceps, the latter from the eastern side of the Andes in Ecuador, but differs in the length of the malar space (Figs 75 – 76) and the dark and dull metallic greyish blue-green to greenish blue coloration of the head and mesosoma (Figs 74 – 76).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134001016AFF06FF43FCCCFAA8.taxon	description	Description. Female: Total body length 8.22 mm; forewing length 5.80 mm. Head length 2.16 mm, width 1.93 mm. Clypeus beginning above lower tangent of compound eyes. Malar space 6.75 % compound eye length (malar length 0.104 mm; compound eye length 1.54 mm) (Figs 75 – 76). Upper interorbital distance 0.91 mm; lower interorbital distance 0.73 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.30 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by ten times vein width, 2 rs-m gently arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs slightly shorter than that of third submarginal cell; posterior border of third submarginal cell slightly more than 1.75 times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with four branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 2 times a puncture width; face with small, nearly contiguous punctures, more widely spaced in malar space; punctures of face blending to faintly imbricate integument in ocellocular area and vertex, with punctures separated by a puncture width or less; gena faintly imbricate with small punctures separated by 1 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum finely imbricate with small punctures separated by a puncture width or less, anteromedially punctures becoming faint; mesoscutellum faintly imbricate with small punctures separated by a puncture width or less; metanotum imbricate with minute punctures separated by a puncture width or less. Preëpisternum faintly imbricate with small punctures separated by 0.5 – 2 times a puncture width; mesepisternum faintly imbricate with small punctures separated by 0.5 – 1.5 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head dark greyish blue-green to greenish blue. Antenna dark brown. Mesosoma dark greyish blue-green to greenish blue (Fig. 74); Figures 74 – 76. Holotype female of Chlerogella borysthenis, sp. n. 74 Lateral habitus 75 Lateral aspect of head 76 Facial aspect. tegula brown. Wing membranes infumate; veins dark brown. Legs dark brown. Metasoma dark brown, with metallic highlights. Pubescence white except fuscous on legs and apical metasomal segments. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134001016AFF06FF43FCCCFAA8.taxon	etymology	Etymology. The specific epithet is the name of one of the three Greek muses who were daughters of Apollo (Cephisso, Apollonis, and Borysthenis).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401E0168FF06FA59FD7AFAC2.taxon	description	Figs 77 – 79, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401E0168FF06FA59FD7AFAC2.taxon	materials_examined	Holotype. ♀, ECUADOR: Pastaza, Palora, 1000 m, 30. iv. 1987 [30 April 1987], M. Cooper (COOP). Figures 77 – 79. Holotype female of Chlerogella breviceps sp. n. 77 Lateral habitus 78 Facial aspect 79 Lateral aspect of head and anterior half of mesosoma.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401E0168FF06FA59FD7AFAC2.taxon	diagnosis	Diagnosis. Chlerogella breviceps from the eastern side of the Andes in Ecuador is superficially most similar to C. borysthenis, itself from the northwestern side of the Ecuadorian Andes, but differs in the length of the malar space (Figs 78 – 79) and the brilliant and shining metallic blue coloration of the head and mesosoma (Figs 77 – 79).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401E0168FF06FA59FD7AFAC2.taxon	description	Description. Female: Total body length 7.15 mm; forewing length 5.27 mm. Head length 1.82 mm, width 1.51 mm. Clypeus beginning above lower tangent of compound eyes. Malar space 10.4 % compound eye length (malar length 0.13 mm; compound eye length 1.25 mm) (Figs 78 – 79). Upper interorbital distance 0.73 mm; lower interorbital distance 0.52 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.25 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rsm distad 2 m-cu by five times vein width, 2 rs-m weakly arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell not narrowed anteriorly, anterior border of second submarginal cell along Rs slightly longer than that of third submarginal cell; posterior border of third submarginal cell slightly more than 2.5 times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with six branches (not including apical portion of rachis). Clypeus and supraclypeal area imbricate with weak punctures separated by 0.5 – 2 times a puncture width; face with small, nearly contiguous punctures, more widely spaced in malar space; punctures of face blending to smooth integument in ocellocular area and vertex, with punctures separated by 0.5 – 2 times a puncture width; gena smooth with small punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum smooth with small punctures separated by a puncture width or less; mesoscutellum as on mesoscutum; metanotum imbricate with small punctures separated by a puncture width or less. Preëpisternum smooth with small punctures separated by 0.5 – 2 times a puncture width; mesepisternum smooth with small punctures separated by 1 – 3 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head brilliant metallic azurite blue. Antenna dark brown. Mesosoma brilliant metallic azurite blue (Fig. 77); tegula dark brown. Wing membranes weakly infumate; veins dark brown. Legs dark brown except tarsomeres slightly lighter. Metasoma dark brown. Pubescence white to slightly golden on legs. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401E0168FF06FA59FD7AFAC2.taxon	etymology	Etymology. The specific epithet is Latin term brevis (meaning, “ short ”) and the suffix – ceps (derived from caput, meaning “ head ”).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401E0168FF06FA59FD7AFAC2.taxon	discussion	Comment. According to current maps Palora is located just inside Morona-Santiago along the border with Pastaza. It is unclear whether the Province is mislabeled on the holotype or whether the actual collection locality was within a couple of kilometers of Palora, just over the border into Pastaza Province.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401C016FFF06FAB6FED1FEEC.taxon	description	Figs 80 – 83, 87 – 89, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401C016FFF06FAB6FED1FEEC.taxon	materials_examined	Holotype. ♁, ECUADOR: Morona-Santiago, Cord de Cutucu, 6 k E of Macas, 1100 m, 17. v. 1981 [17 May 1981], M. Cooper (COOP). Paratypes. ECUADOR: 1 ♁, same data as holotype (COOP); 1 ♁, Morona-Santiago, Cord de Cutucu, 6 k E of Macas, 1100 m, 13. v. 1981 [13 May 1981], M. Cooper (COOP). Figures 80 – 83. Holotype male of Chlerogella cooperella sp. n. 80 Lateral habitus 8 Ι Facial aspect 82 Lateral aspect of head 83 Posterior view of hind leg from metatrochanter to meta-prestarsus, depicting spine at base of metabasitarsus.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401C016FFF06FAB6FED1FEEC.taxon	diagnosis	Diagnosis. The male of C. cooperella is unique among species of Chlerogella for the presence of an elongate spine at the base of the metabasitarsus and orthogonal to the length of the tarsomere (Fig. 83).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401C016FFF06FAB6FED1FEEC.taxon	description	Description. Male: Total body length 7.68 – 7.75 mm; forewing length 5.40 – 5.54 mm. Head length 2.08 – 2.10 mm, width 1.41 – 1.42 mm. Clypeus beginning above lower tangent of compound eyes. Malar space 17.7 % compound eye length (malar length 0.23 mm; compound eye length 1.30 mm) (Figs 81 – 82). Upper interorbital distance 0.65 – 0.67 mm; lower interorbital distance 0.34 – 0.36 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere 3.4 times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.12 – 1.15 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by three times vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m relatively straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about as along as that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner base of metabasitarsus with elongate spine orthogonal to length of metabasitarsus (Fig. 83); inner metatibial spur pectinate with eight short branches (not including apical portion of rachis). Apical margins of SIII – V entire; apical margin of SVI emarginate; terminalia as depicted in figures 87 – 89. Clypeus and supraclypeal area imbricate with weak punctures separated by 1 – 2 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to smooth integument in ocellocular area, with punctures separated by 2 – 3 times a puncture width, then to imbricate on vertex with punctures separated by 1 – 2 times a puncture width; gena smooth with small punctures separated by 2 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum imbricate with small punctures separated by a puncture width or less, anteromedially punctures becoming faint to absent; mesoscutellum imbricate with small punctures separated by a puncture width or less; metanotum imbricate with. Preëpisternum imbricate with small punctures separated by a puncture width or less; mesepisternum imbricate with small punctures separated by 0.5 – 3.5 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible yellow; labrum yellow; clypeal apex yellow, remainder of clypeus and face dark, dull metallic greyish blue, gena and postgena more greyish green. Antenna dark brown except base and ventral surface of scape lighter brown. Mesosoma dark, dull metallic greyish blue above and greyish green laterally (Fig. 80); tegula dark brown. Wing membranes lightly infumate; veins dark brown. Legs dark brown except anterior legs lighter and midlegs with lighter areas posteriorly. Metasoma dark brown. Pubescence white. Typical gender pilosity except postgena with some elongate, sinuate setae, such setae with short apical branches. Apical margin of SIII without fringe; SIV with diffuse apicolateral areas of long, white setae; SV laterally with diffuse areas of long, inwardly-curved setae. Female: Unknown. Etymology. The specific epithet is the diminutive of a patronym honoring Martin Cooper, Wiltshire, UK, collector of these and numerous other fine bees from the Neotropical Region.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401B0162FF06FE9CFF4BFE1C.taxon	description	Figs 84 – 86, 90 – 91, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401B0162FF06FE9CFF4BFE1C.taxon	materials_examined	Holotype. ♁, ECUADOR: Napo, Muyuna, 500 m, 5 km W. of Tena, 23. iv. 1981 [23 April 1981], M. Cooper (COOP). Paratype. ECUADOR: ♁, Napo, Muyuna, 500 m, 5 km W. of Tena, 20. iv. 1981 [20 April 1981], M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401B0162FF06FE9CFF4BFE1C.taxon	diagnosis	Diagnosis. This species is very close to C. octogesima (Brooks and Engel) differing from that species by the more diffuse setae on SIII and SIV (developed into more dense fringes in C. octogesima), by the distinctly and greatly elongate diffuse apicolateral setae on SV (such elongate setae absent in C. octogesima), by the ventral fringe of setae on the ventral gonostylar process being elongate and not greatly thickened (Fig. 91) (decreasing in length to very short apically on ventral gonostylar process in C. octogesima, these same setae are distinctly thickened and curved, almost hooked, at their apices), and by the presence of greatly elongate setae dorsoapically on the penis valves (not present in C. octogesima).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401B0162FF06FE9CFF4BFE1C.taxon	description	Description. Male: Total body length 6.47 – 6.54 mm; forewing length 4.53 – 4.60 mm. Head length 1.74 – 1.80 mm, width 1.25 – 1.28 mm. Clypeus beginning slightly above lower tangent of compound eyes. Malar space 11.6 – 13.9 % compound eye length (malar length 0.13 – 0.16 mm; compound eye length 1.12 – 1.15 mm) (Figs 85 – 86). Upper interorbital distance 0.63 – 0.64 mm; lower interorbital distance 0.30 – 0.34 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere 2.8 times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 0.83 – 0.94 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by four times vein width; 2 rs-m distad 2 m-cu by five times vein width, 2 rs-m straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell not narrowed anteriorly, anterior border of second submarginal cell along Rs slightly shorter than that of third submarginal cell; posterior border of third submarginal cell slightly more than two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur minutely ciliate. Apical margin of SIII entire; apical margin of SIV entire, without furrow in apical half Figures 84 – 86. Holotype male of Chlerogella silvula sp. n. 84 Lateral habitus 85 Facial aspect 86 Lateral aspect of head. of disc; apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 90 and 91. Clypeus and supraclypeal area faintly imbricate with weak punctures separated by 0.5 – 1.5 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to smooth integument in ocellocular area and vertex, with punctures separated by 1 – 2.5 times a puncture width; gena smooth with small punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum smooth with scattered minute punctures; mesoscutum smooth with small punctures separated by 1 – 2.5 times a puncture width; mesoscutellum smooth with small punctures separated by 1 – 2 times a puncture width; metanotum smooth with minute punctures separated by 1 – 3 times a puncture width. Figures 87 – 9 Ι. Male terminalia for some Ecuadorian Chlerogella species. 87 Chlerogella cooperella sp. n., hidden and fused sterna VII and VIII 88 Detail of volsella for C. cooperella sp. n. 89 C. cooperella sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) 70 C. silvula sp. n., hidden and fused sterna VII and VIII 7 Ι C. silvula sp. n., genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1 mm. Preëpisternum smooth with small punctures separated by 2 – 5 times a puncture width; mesepisternum smooth with small punctures separated by 2 – 6 times a puncture width; metepisternum smooth. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible yellow except reddish at apex; labrum yellow; clypeal apex yellow, remainder of clypeus and head brilliant metallic green, with copper highlights, coloration more bluish on vertex. Antenna brown except scape largely yellow. Mesosoma brilliant metallic green, with copper highlights (Fig. 84), coloration more blue on mesosomal dorsum; pronotal lobe amber; tegula amber. Wing membranes lightly infumate; veins brown. Legs amber. Metasoma dark brown except SI – III amber, TI – III largely amber except brown on apical margin TI, apical third TII, and apical half TIII, tergal margins translucent brown. Pubescence white. Typical gender pilosity except postgena with elongate, sinuate setae, such setae with short apical branches and more dense anteriorly; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatibia except simple and somewhat sinuate. Apical margin of SIII – V laterally with diffuse patches of long setae, those on SV particularly elongate. Female: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13401B0162FF06FE9CFF4BFE1C.taxon	etymology	Etymology. The specific epithet is a diminutive of the Latin term silva, meaning “ forest ”.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340160163FF06FDCCFBBAFA8D.taxon	materials_examined	Holotype. ♁, ECUADOR: Napo, Misahualli, 1 hr. down Río Napo, 19 November 1983, L. Huggert (PMAE).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340160163FF06FDCCFBBAFA8D.taxon	diagnosis	Diagnosis. Refer to diagnosis for C. silvula (vide supra).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340160163FF06FDCCFBBAFA8D.taxon	description	Description. Modified after Brooks and Engel (1998): Male: Total body length 6.67 mm; forewing length 4.58 mm. Head length 1.73 mm, width 1.19 mm. Distal three-quarters of clypeus extending below lower tangent of compound eyes. Malar space about as long as basal mandibular width. Upper interorbital distance 0.58 mm; lower interorbital distance 0.37 mm. First flagellomere about as long as pedicel, about as long as wide and about one-half length of second flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by three times vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m relatively straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs shoter than that of third submarginal cell; posterior border of third submarginal cell about 2.5 times as long as anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur serrate. Ventral fringe of setae on ventral gonostylar process decreasing in length to very short apically and distinctly thickened and curved, almost hooked, at their apices; penis valves lacking elongate setae dorsoapically. Clypeus and supraclypeal area faintly imbricate with weak punctures separated by 0.5 – 1.5 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to smooth integument in ocellocular area and vertex, with punctures separated by 1 – 2.5 times a puncture width; gena smooth with small punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum smooth with scattered minute punctures; mesoscutum faintly imbricate with minute punctures separated by 1 – 3.0 times a puncture width; mesoscutellum as on mesoscutum. Preëpisternum smooth with faint contiguous punctures; mesepisternum finely imbricate with minute punctures separated by 1 – 3 times a puncture width; metepisternum smooth. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible pale with black apex; labrum, clypeal apex, and apical half of malar space pale; antenna brown; remainder of head and mesosoma metallic green, except tegula brown amber and semi-translucent. Legs amber except outer surface of metafemur slightly darker. Metasomal TI – III with apical half brown, basal half amber; TIV – VII entirely brown. Pubescence pale white; setae of mesoscutellum of moderate length. Terga with scattered simple setae progressively becoming longer and more numerous on apical terga; SI and SII with scattered simple setae; SIII with strong apical fringe of setae and SIV with less strong but very distinct brush of setae; SV and SVI with a less dense preapical band of setae. Female: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340160163FF06FDCCFBBAFA8D.taxon	discussion	Comments. The female for C. octogesima remains unknown and, given the similarities of the males of C. octogesima and C. silvula, may prove difficult to distinguish if not captured alongside males. The species was originally placed in Ischnomelissa based on an incomplete knowledge of variation in Chlerogella. Given that the species had a short head and that the female was unknown (the most significant character at that time being the inner metatibial spur of females), the species was attributed to Ischnomelissa as no Chlerogella were known to have short malar spaces and despite the more elaborate and contorted gonostylar process which itself was not known among the otherwise relatively simple species of Ischnomelissa (but again, the genitalia of Chlerogella males was almost entirely unknown in 1998 as even the growing number of new, undescribed species at that date were known principally from females). It is now understood that malar length alone cannot exclude this species from Chlerogella and, more importantly, the structure of the gonostylar process is distinctive to Chlerogella (refer to the generic account, vide supra). Accordingly, this species is herein transferred to Chlerogella.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340170161FF06FA7CFED9FAAB.taxon	materials_examined	Holotype. ♀, ECUADOR: Napo, Sierra Azul, 2300 m, 21 – 22 April 1996, P. Hibbs, ex: flight intercept trap (SEMC). Figures 92 – 94. Holotype female of Chlerogella mourella Engel. 92 Lateral habitus 93 Lateral aspect of head 94 Facial aspect. Paratype. ECUADOR: 1 ♀, Napo, Cosanga Aragon, 8 November 1993, G. Onore (QCAZ).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340170161FF06FA7CFED9FAAB.taxon	diagnosis	Diagnosis. Chlerogella mourella can be recognized readily by its relatively short malar space and its black head and mesosoma lacking metallic highlights (Figs 92 – 94).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340170161FF06FA7CFED9FAAB.taxon	description	Description. From Engel (2003 b), with minor emendations: Female: Total body length 10.6 mm; forewing length 8.72 mm. Head length 2.44 mm, width 1.84 mm. Clypeus beginning just above lower tangent of compound eyes. Malar space 19 % compound eye length (malar length 0.3 mm, compound eye length 1.58 mm) (Figs 93 – 94). Upper interorbital distance 0.96 mm; lower interorbital distance 0.88 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.5 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by 3.5 times vein width; 2 rs-m distad 2 m-cu by five times vein width, 2 rs-m straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs shorter than that of third submarginal cell; posterior border of third submarginal cell about two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with six branches (not including apical portion of rachis). Clypeus and supraclypeal area granular with weak punctures separated by a puncture width; face granular with minute punctures in malar space separated by a puncture width; vertex weakly granular, becoming imbricate on gena and more strongly so by postgena. Pronotum weakly imbricate; mesoscutum granular; mesoscutellum and metanotum finely imbricate with faint punctures. Preëpisternum and mesepisternum granular with faint punctures separated by 2 – 3 times a puncture width; hypoepimeral area impunctate; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible black with reddish apex; labrum and remainder of head black to dark brown. Antenna dark brown except basal one-fifth and inner surface of scape amber. Mesosoma black (Fig. 92); tegula dark brown. Wing membranes lightly infumate; veins amber except Sc + R dark brown. Legs amber except dark brown on procoxa, inner surface of profemur, basal half of mesocoxa, inner base of mesofemur, basal threequarters of metacoxa, basal half of inner surface of metafemur. Metasomal TI amber, with dark brown band just beyond midline, band stopping a distance from apical margin equal to its width, apical margin amber; TII dark brown except basal and apical margins amber; TIII dark brown except apical margin amber; TIV – VI dark brown; SI – II amber; SIII amber except medial dark brown patch; SIV dark brown except apical margin yellowish; SV – VI dark brown. Pubescence golden except somewhat fuscous on TV – VI and SVI. Dense long, branched setae on discs of SI – II. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340150167FF06FA59FF59F9A2.taxon	description	Figs 95 – 98, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340150167FF06FA59FF59F9A2.taxon	materials_examined	Holotype. ♀, ECUADOR: Napo, 1200 m, km 7.3 Sarayacu-Loreto rd., 20 July 1994, F. Génier, ex: feces trap (SEMC). Figures 95 – 98. Holotype female of Chlerogella euprepia sp. n. 95 Lateral habitus 96 Facial aspect 97 Lateral aspect of head 98 Dorsal aspect of mesoscutellum, metanotum, and propodeum. Paratypes. ECUADOR: 1 ♀, Morona-Santiago, Cord. de Cutucu, 6 km E of Macas, 1100 m, 9. v. 1987 [9 May 1987], M. Cooper (COOP); 1 ♀, Mor. Santiago, Miazal, 50 km SE Macas, 4 – 7. i. 1993 [4 – 7 January 1993], 300 m, M. & J. Wasbauer (BLCU); 1 ♀, Napo, via Hollin-Loreto, km 25, 1100 m, 6 / 12 / 87 [6 December 1987], leg. M. M. Meria (QCAZ).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340150167FF06FA59FF59F9A2.taxon	diagnosis	Diagnosis. Chlerogella euprepia is noteworthy among longer-headed species of Chlerogella for the amber markings on the mesoscutellum and metanotum, contrasting with the otherwise metallic coloration of the mesosoma (Fig. 98).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340150167FF06FA59FF59F9A2.taxon	description	Description. Female: Total body length 9.78 – 9.82 mm; forewing length 6.47 – 6.50 mm. Head length 2.69 – 2.71 mm, width 1.82 – 1.83 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 44.8 – 45 % compound eye length (malar length 0.68 mm; compound eye length 1.51 – 1.52 mm) (Figs 96 – 97). Upper interorbital distance 0.88 – 0.89 mm; lower interorbital distance 0.65 – 0.66 mm. Upper portion of pronotum slightly swollen, medially about 1.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.32 – 1.38 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by vein width; 2 rs-m distad 2 m-cu by four times vein width, 2 rsm straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs slightly shorter than that of third submarginal cell; posterior border of third submarginal cell about 1.75 times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with five branches (not including apical portion of rachis). Clypeus and supraclypeal area smooth with weak punctures separated by 0.5 – 2 times a puncture width; face with small contiguous punctures; similar punctures in ocellocular area and vertex, punctures separated by 0.5 – 1.5 times a puncture width, integument otherwise finely imbricate; gena finely imbricate with minute punctures separated by a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute, scattered punctures; mesoscutum imbricate with small punctures separated by less than a puncture width; mesoscutellum as on mesoscutum; metanotum imbricate with scattered minute punctures. Preëpisternum finely imbricate with weak punctures separated by 0.5 – 2 times a puncture width; mesepisternum finely imbricate with small and shallow punctures separated by 2 – 4 times a puncture width; metepisternum finely imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible amber except reddish brown at apex; labrum amber; clypeal apex amber, remainder of clypeus and head metallic green with copper highlights. Antenna brown except scape amber and flagellum lighter ventrally. Mesosoma metallic green with copper highlights (Fig. 95) except pronotal lobe brown and mesoscutellum and metanotum largely amber (Fig. 98) and contrasting with mesoscutal and propodeum metallic coloration; tegula translucent amber. Wing membranes yellowed; veins amber except Sc + R and longitudinal veins basad basal vein brown. Legs amber except procoxa metallic green. Metasoma amber except TIII – V with large medial, transverse areas of dark brown, similar areas of dark brown on SIII – V (degree of development of such dark brown bands variable in type series). Pubescence largely golden, somewhat white on face. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340150167FF06FA59FF59F9A2.taxon	etymology	Etymology. The specific epithet is based on the Greek term euprepes, meaning “ comely ”.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134010011BFF06FF43FBACFAC2.taxon	description	Figs 99 – 106, 115 – 116, Map 3	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134010011BFF06FF43FBACFAC2.taxon	materials_examined	Holotype. ♀, ECUADOR: Pich. [Pichincha], E. Sto. Domingo, 6 – 12 May 1990, W. J. Hanson (SEMC). Paratypes. ECUADOR: 10 ♀♀, 6 ♁♁, Pichincha, Nanegal, 1300 m, 9. vii. 1984 [9 July 1984], M. Cooper (COOP); 4 ♀♀, Pichincha, Nanegal, 1300 m, 10. vii. 1984 [10 July 1984], M. Cooper (COOP); 1 ♁, Pichincha, Nanegal, 1300 m, 12. vii. 1984 [12 July 1984], M. Cooper (COOP); 1 ♀, Pinchincha [sic], Rio Palenque Station, 47 km S. Sto. [Santo] Domingo, 4.30 – 5.5 [30 April – 5 May] 1987, malaise trap, L. Coote & B. Brown (YORK); 1 ♀, Pichincha, Tinalandia, 15 km SE Santo Domingo de los Colorados, vi- 29 - 1982, M. Wasbauer, J. Slansky (BLCU); 1 ♀, Pich. [Pichincha], E. St. Domingo, 8 – 14 May 1988, Hanson & Bohart (BLCU); 1 ♁, Pich. [Pichincha], nr. Sto. Domingo, 8 / 14 - v- 88 [8 – 14 May 1988], 2500 ’ [2500 feet], Hanson, Bohart (SEMC); 1 ♁, Bilsa, 10 May – 5 June 1996, P. Hibbs, flight intercept trap (SEMC); 1 ♀, Pichincha, Maquipucuna Biological Station, river trail, 1200 m, 0 º 7 ' 34 " N, 78 º 37 ' 57 " W, 27 – 29 Oct. [October] 1999, Z. H. Falin, ex: flight intercept trap (SEMC).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134010011BFF06FF43FBACFAC2.taxon	diagnosis	Diagnosis. Chlerogella elysia is superficially similar to C. terpsichore but differs most notably in the absence of amber on the clypeus (Fig. 101), the shorter malar space (Figs 100 – 101, 105 – 106), presence of distinct fluorescence on the mesosoma and head (Figs 102 – 103), and male sterna (vide infra) and terminalia (Figs 115 – 116).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134010011BFF06FF43FBACFAC2.taxon	description	Description. Female: Total body length 8.22 – 8.39 mm; forewing length 5.93 – 6.0 mm. Head length 2.32 – 2.35 mm, width 1.63 – 1.72 mm. Clypeus beginning at lower tangent of compound eyes. Malar space 16.4 – 17.6 % compound eye length (malar length 0.23 – 0.24 mm; compound eye length 1.46 – 1.48 mm) (Figs 100 – 101). Upper interorbital distance 0.77 – 0.81 mm; lower interorbital distance 0.53 – 0.60 mm. Upper portion of pronotum medially depressed, slightly swollen, medially less than 1.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.31 – 1.41 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by four times vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m arcuate; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell not narrowed anteriorly, anterior border of second submarginal cell along Rs about as long as third submarginal cell; posterior border of third submarginal cell about two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with 4 – 5 branches (not including apical portion of rachis). Clypeus and supraclypeal area smooth with weak punctures separated by 1.5 – 4 times width; face above level of antennae with small punctures separated by 0.1 – 1.75 times a puncture width, below level of antennae and in malar space smooth with punctures separated by width or less; vertex, ocellocular area, and gena smooth with punctures becoming smaller and separated 1 – 3 times a puncture width; postgena im- Figures 99 – Ι 03. Female of Chlerogella elysia sp. n. 99 Dorsal habitus Ι 00 Lateral aspect of head Ι 0 Ι Facial aspect Ι 02 Dorsal aspect of mesoscutum showing fluorescence Ι 03 Oblique view of mesoscutum showing strong fluorescence. bricate and impunctate. Pronotum faintly imbricate with scattered minute punctures; mesoscutum smooth with small punctures separated by 1 – 4 times a puncture width, punctures weaker anteriorly and integument becoming faintly imbricate; mesoscutellum smooth with punctures separated by 1 – 2.5 times a puncture width; metanotum as on mesoscutum. Preëpisternum and mesepisternum smooth with weak punctures sep- Figures Ι 04 – Ι 06. Male of Chlerogella elysia sp. n. Ι 04 Lateral habitus Ι 05 Facial aspect Ι 06 Lateral aspect of head. arated by 2 – 6 times a puncture width; metepisternum smooth with scattered minute punctures. Propodeum imbricate. Metasoma faintly imbricate. Mandible dark brown with reddish apex; labrum dark brown; malar space, clypeus, and lower two-thirds supraclypeal area dark brown with weak copper highlights; basal area and lateral borders of supraclypeal area and remainder of head dark metallic green with copper highlights and blue fluorescence (giving a blue-green cast to some specimens). Antenna brown except basal half of scape amber. Mesosoma dark metallic green with copper-gold highlights and strong overlaying blue fluorescence on mesoscutum (Figs 102 – 103) (opalescence present but weaker on mesoscutellum, metanotum, and propodeum); pronotal lobe amber; tegula amber. Wings hyaline; veins brown. Legs amber except procoxa dark metallic green and in some specimens areas of brown on inner surfaces of coxae, trochanters, femora, and tibiae. Metasoma amber (Fig. 99) except some specimens marked with brown on basal thirds of TIII – VI and SIII – VI (rarely with a very thin light brown transverse band on TII). Pubescence golden. Male: As described for the female except as follows: Total body length 9.15 – 9.30 mm; forewing length 5.87 – 6.13 mm. Head length 2.30 – 2.48 mm, width 1.59 – 1.63 mm. Clypeus beginning at lower tangent of compound eyes. Malar space 18 – 19.9 % compound eye length (malar length 0.26 – 0.29 mm; compound eye length 1.44 – 1.46 mm) (Figs 105 – 106). Upper interorbital distance 0.73 – 0.74 mm; lower interorbital distance 0.39 – 0.40 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere 2.4 times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.22 – 1.25 mm; mesoscutellum not bigibbous. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV broadly concave between broad paramedial lobes, without furrow in apical half of disc; apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 115 and 116. Mandible and labrum yellow in coloration; clypeal apex and most of malar space amber, remainder of clypeus largely dark brown with strong metallic copper highlights except with overlaying metallic green basally; supraclypeal area dark metallic green with copper highlights. Scape amber on basal two-thirds to three-quarters. Typical gender pilosity except postgena with scattered elongate, sinuate setae, such setae with short apical branches; inner surfaces of procoxa, trochanters, profemur, mesofemur, and metacoxa with elongate, apically-plumose setae (such setae particularly numerous on procoxa, protrochanter, and base of profemur), similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate. Apical margin of SIII with fringe of moderate-length golden setae; SIV with patches of short, subappressed dense golden fuscous setae bordering medial emargination and extending posteriorly along disc; SV laterally with diffuse areas of long, inwardly-curved setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C134010011BFF06FF43FBACFAC2.taxon	etymology	Etymology. The specific epithet is taken from the Latin Elysium, abode of the blessed, and is a reference to the unearthly fluorescence of this beautiful species.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13406F011DFF06FAB6FD72FAAB.taxon	description	Figs 107 – 114, 117 – 118, Maps 3, 4	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13406F011DFF06FAB6FD72FAAB.taxon	materials_examined	Holotype. ♀, ECUADOR: Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 m, 14. v. 1987 [14 May 1987], M. Cooper (COOP). Paratypes. ECUADOR: 1 ♀, 1 ♁, same data as holotype (COOP); 1 ♀, Morona- Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 m, 14. v. 1987 [25 May 1987], M. Cooper (COOP); 1 ♀, Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 Figures Ι 07 – ΙΙ 0. Female of Chlerogella hypermeces sp. n. Ι 07 Lateral habitus Ι 08 Facial aspect Ι 09 Lateral aspect of head ΙΙ 0 Oblique ventrolateral aspect of head, detailing anterior hypostomal lamella. m, 26. vi. 1981 [26 June 1981], M. Cooper (COOP); 1 ♀, Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 m, 9. v. 1987 [9 May 1987], M. Cooper (COOP); 1 ♀, Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1000 m, 31. i. 1991 [31 January 1991], M. Cooper (COOP); 1 ♀, Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1000 m, 31. v. 1990 [31 May 1990], M. Cooper (COOP); 1 ♁, Morona- Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 m, 21. v. 1981 [21 May 1981], M. Cooper (COOP); 1 ♁, Morona-Santiago, Macas, 1100 m, 5. ii. 1982 [5 February Figures ΙΙΙ – ΙΙ 4. Male of Chlerogella hypermeces sp. n. ΙΙΙ Lateral habitus ΙΙ 2 Facial aspect ΙΙ 3 Lateral aspect of head ΙΙ 4 Apical metasomal sterna. 1982], M. Cooper (COOP); 1 ♁, Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 m, 16. v. 1987 [16 May 1987], M. Cooper (COOP); 1 ♁, Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 m, 26. iii. 1981 [26 March 1981], M. Coop- er (COOP); 1 ♀, 1 ♁, Morona-Santiago, Cord. de Cutucu, 6 km E. of Macas, 1100 m, 25. v. 1987 [25 May 1987], M. Cooper (COOP); 1 ♀, Morona-Santiago, Rio Upano, 6 km East of Sucua, 750 m, 16. vii. 1984, M. Cooper (COOP). COLOMBIA: 2 ♁♁, Putumayo, Villa Garzon, 400 – 550 m, 25. xii. 1987 [25 December 1987], M. Coop- Map 4. Collection localities for Colombian Chlerogella (note that C. hypermeces extends into Ecuador; vide etiam Map 3). Figures ΙΙ 5 – ΙΙ 8. Male terminalia for some Ecuadorian Chlerogella species (note: C. hypermeces sp. n., also has been recorded from southern Colombia, vide Map 4). ΙΙ 5 Chlerogella elysia sp. n., hidden and fused sterna VII and VIII ΙΙ 6 C. elysia sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) ΙΙ 7 C. hypermeces sp. n., hidden and fused sterna VII and VIII ΙΙ 8 C. hypermeces sp. n., genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1 mm. er (COOP); 1 ♁, Putumayo, Villa Garzon, 400 – 550 m, 24. xii. 1987 [24 December 1987], M. Cooper, on flowers of Palicourea pongoana Standl. [this is actually Psychotria pongoana] (Rubiaceae) (COOP); 1 ♀, Putumayo, Villa Garzon, 400 m, 13. x. 1984 [13 October 1984], M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13406F011DFF06FAB6FD72FAAB.taxon	diagnosis	Diagnosis. This is one of the largest species of the genus, resembling in size C. hauseri from Bolivia (vide supra) and, also like C. hauseri, has one of the most elongate heads (Table 2). Females of C. hypermeces are immediately recognizable owing to the large hypostomal lamellae formed on the rostrum (Figs 109 – 110). While males lack this feature (or have it only very weakly developed), their coloration (Figs 111 – 113), sternal structure (Fig. 114), and terminalia (Figs 117 – 118) are immediately distinc- tive. Female coloration, which is similar to the male, also serves to separate them from congeners (Figs 107 – 110).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13406F011DFF06FAB6FD72FAAB.taxon	description	Description. Female: Total body length 9.81 – 9.90 mm; forewing length 6.80 – 6.93 mm. Head length 3.07 – 3.23 mm, width 1.80 – 1.88 mm. Hypostomal carina enlarged into enlarged lamella in anterior half of head near mandibular base (Figs. 109 – 110). Clypeus beginning below lower tangent of compound eyes. Malar space 65.2 – 66 % compound eye length (malar length 1.03 – 1.07 mm; compound eye length 1.57 – 1.64 mm) (Figs 108 – 110). Upper interorbital distance 0.86 – 0.90 mm; lower interorbital distance 0.57 – 0.63 mm. Upper portion of pronotum medially depressed, slightly elongate, medially less than 0.75 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.41 – 1.48 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m gently arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell narrowed anteriorly, anterior bor- der of second submarginal cell along Rs slightly shorter than that of third submarginal cell; posterior border of third submarginal cell about two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with 5 – 6 branches (not including apical portion of rachis). Clypeus and supraclypeal area faintly imbricate with weak punctures separated by 1 – 3.5 times a puncture width; face above level of antennae minutely punctured, punctures separated by less than a puncture width and frequently nearly contiguous, below level of antennae and in malar space punctures slightly more widely spaced; punctures of face blending to smooth integument in ocellocular area and vertex, with smaller punctures separated by 1 – 2.5 times a puncture width; gena smooth with minute punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum faintly imbricate with scattered minute punctures; mesoscutum smooth with small punctures separated by 0.5 – 1.5 times a puncture width, puntures weaker anteriorly, blending to imbricate integument anteromedially; mesoscutellum smooth with small punctures separated by 0.5 – 1.5 times a puncture width; metanotum faintly imbricate with minute punctures separated by 0.5 – 2 times a puncture width. Preëpisternum smooth with small punctures separated by 0.5 – 2 times a puncture width; mesepisternum smooth with weak punctures separated by 2 – 6 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma faintly imbricate. Mandible amber except reddish at apex; labrum amber; clypeal apex and medially for most of surface amber, basal borders of clypeus dark brown with strong metallic copper highlights; malar space with amber patch near mandibular base otherwise dark brown with strong metallic copper and sometimes green highlights; supraclypeal area dark brown with strong metallic copper highlights; remainder of head metallic copper-green. Antenna light brown except scape amber. Mesosoma metallic copper green (Fig. 107); tegula amber. Wing membranes lightly infumate or yellowed; veins amber except Sc + R brown. Legs amber except coxae, trochanters, and proximal half of metafemur brown with copper green highlights. Metasoma amber except TIII to metasomal apex dark brown with strong metallic copper highlights and translucent amber apical margins; sterna dark brown. Pubescence golden except slightly more fuscous apically on metasoma. Male: As described for the female except as follows: Total body length 10.88 – 11.70 mm; forewing length 6.80 – 7.0 mm. Head length 3.15 – 3.30 mm, width 1.63 – 1.83 mm. Hypostomal carina not lamellate or only very weakly so anteriorly. Clypeus beginning below lower tangent of compound eyes. Malar space 69.5 – 70 % compound eye length (malar length 1.07 – 1.10 mm; compound eye length 1.54 – 1.58 mm) (Figs. 112 – 113). Upper interorbital distance 0.78 – 0.83 mm; lower interorbital distance 0.42 – 0.50 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere 3.4 times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.39 – 1.50 mm; mesoscutellum not bigibbous, faintly depressed medially. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV weakly emarginate, margin weakly and broadly produced lateral to emargination, without furrow in apical half of disc (Fig. 114); apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 117 and 118. Mandible and labrum more yellow in coloration; amber mark on clypeus typically extending from apex to only about midlength of clypeus, remainder dark brown with strong metallic copper highlights. Legs typically more yellow than in female. Metasoma with amber in basal third on TIII – V in some males. Typical gender pilosity except postgena with scattered elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, profemur, mesofemur, and metacoxa with elongate, apically-plumose setae (such setae particularly numerous on protrochanter and base of profemur), similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate. Apical margin of SIII with fringe of moderate-length golden setae; SIV with small, apicolateral areas of diffuse long golden setae and patches of short, subappressed dense setae bordering medial emargination and extending posteriorly along disc; SV laterally with diffuse areas of long, inwardly-curved setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13406F011DFF06FAB6FD72FAAB.taxon	etymology	Etymology. The specific epithet is taken from the Greek term hypermekes, meaning “ very long ”. Floral record. A male of C. hypermeces was captured at flowers of Psychotria pongoana Standl. (Rubiaceae) in Putumayo, Colombia.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340690111FF06FA59FB9FFD82.taxon	description	Figs 119 – 125, 135 – 136, Map 4	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340690111FF06FA59FB9FFD82.taxon	materials_examined	Holotype. ♀, COLOMBIA: Nariño, Barbacoas, 40 m, 2. x. 1990 [2 October 1990], M. Cooper (COOP). Figures ΙΙ 9 – Ι 2 Ι. Female of Chlerogella terpsichore sp. n. ΙΙ 9 Lateral habitus Ι 20 Lateral aspect of head Ι 2 Ι Facial aspect. Paratypes. COLOMBIA: 4 ♁♁, Nariño, Barbacoas, 40 m, 1. x. 1990 [1 October 1990], M. Cooper (COOP); 1 ♀, Nariño, Barbacoas, 40 m, 2. x. 1990 [2 October 1990], M. Cooper (COOP); 1 ♀, Nariño, Barbacoas, 40 m, 3. x. 1990 [3 October 1990], M. Cooper (COOP); 1 ♁, 1 ♀, Nariño, Barbacoas, 40 m, 4. x. 1990 [4 October 1990], M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340690111FF06FA59FB9FFD82.taxon	diagnosis	Diagnosis. Chlerogella terpsichore is most superficially similar to C. elysia but differs in the presence of amber on the clypeus and the absence of distinct fluorescence on the mesosoma and head. In structural features, C. terpsichore is similar to C. elongaticeps from Panama in the presence of lateral processes on SIV (Fig. 125), a unique feature Figures Ι 22 – Ι 25. Male of Chlerogella terpsichore sp. n. Ι 22 Lateral habitus Ι 23 Facial aspect Ι 24 Lateral aspect of head Ι 25 Apical metasomal sterna. among the South American species of the genus. The species is also similar to C. tychoi, also from Colombia, but has a shorter malar space (Figs 120 – 121) and different structure to the inner metatibial spur.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340690111FF06FA59FB9FFD82.taxon	description	Description. Female: Total body length 8.22 – 8.30 mm; forewing length 5.07 – 5.12 mm. Head length 2.35 – 2.36 mm, width 1.55 – 1.57 mm. Clypeus beginning at or minutely below lower tangent of compound eyes. Malar space 30.9 – 31.1 % compound eye length (malar length 0.43 – 0.44 mm; compound eye length 1.39 – 1.41 mm) (Figs 120 – 121). Upper interorbital distance 0.77 – 0.78 mm; lower interorbital distance 0.51 – 0.53 mm. Upper portion of pronotum slightly swollen, medially about 1.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.15 – 1.19 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by five times vein width; 2 rs-m distad 2 m-cu by seven times vein width, 2 rs-m straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell narrowed anteriorly, anterior border of second submarginal cell along Rs about onehalf as along as that of third submarginal cell; posterior border of third submarginal cell about 1.75 times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with five branches (not including apical portion of rachis). Clypeus and supraclypeal area smooth with weak punctures separated by 0.5 – 2 times a puncture width; face with small punctures separated by a puncture width or less; similar punctures and integument in ocellocular area and vertex, punctures separated by 1 – 1.5 times a puncture width; gena smooth with minute punctures separated by 1 – 4 times a puncture width; postgena imbricate and impunctate. Pronotum faintly imbricate with minute, scattered punctures; mesoscutum smooth with small punctures separated by a puncture width or less; mesoscutellum smooth with minute punctures separated by a puncture width; metanotum faintly imbricate with minute punctures separated by 2 – 3 times a puncture width. Preëpisternum weakly rugulose above blending to weakly imbricate with shallow, coarse punctures separated by a puncture width or less; mesepisternum smooth, with small and shallow punctures separated by 1 – 3 times a puncture width; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible amber except reddish brown at apex; labrum amber; clypeal apex and central area amber, blending to amber brown and brilliant metallic green with strong copper highlights, supraclypeal area brilliant metallic green with strong copper highlights, remainder of head brilliant metallic green with varying copper highlights, green and highlights less strong in malar space. Antenna dark brown except basal two-thirds of scape amber, pedicel and first flagellomere amber brown. Mesosoma brilliant metallic green with copper highlights except pronotal lobe amber (Fig. 119); tegula translucent amber. Wing membranes hyaline; veins brown except C and Sc + R dark brown. Legs amber. Metasoma amber. Pubescence white and golden. Male: As described for the female except as follows: Total body length 8.50 – 8.64 mm; forewing length 5.13 – 5.22 mm. Head length 2.37 – 2.41 mm, width 1.57 – 1.60 mm. Malar space 30.5 – 31.0 % compound eye length (malar length 0.43 – 0.44 mm; compound eye length 1.41 – 1.42 mm) (Figs 123 – 124). Upper interorbital distance 0.75 – 0.77 mm; lower interorbital distance 0.37 – 0.38 mm. First flagellomere about 1.75 times longer than wide, longer than pedicel; second flagellomere two times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.07 – 1.15 mm. Inner metatibial spur serrate. Apical margin of SIII weakly concave; apical margin of SIV deeply concave, almost V-shaped, laterally produced into long processes (Fig. 125), without medio-longitudinal furrow on disc; apical margin of SV relatively entire, with exceedingly faint hump medially; apical margin of SVI emarginate; terminalia as depicted in figures 135 and 136. Scape and pedicel amber, remainder of antenna brown. Metasoma sometimes with more apical terga (beyond TII) marked with light brown to brown, otherwise entirely amber. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter and metafemur; metatibia without distinctly elongate and sinuous setae. Apical margin of SIII with lateral areas of long, diffuse apical setae; SIV with patch of small darker setae at apices of lateral processes, with three long setae positioned along lateral thirds of margins and before lateral processes; SV with scattered setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340690111FF06FA59FB9FFD82.taxon	etymology	Etymology. The specific epithet is from the Greek muse for dance, Terpsichore.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340650117FF06FD76FE9AFC01.taxon	description	Figs 126 – 128, 137 – 138, Map 4	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340650117FF06FD76FE9AFC01.taxon	materials_examined	Holotype. ♁, COLOMBIA: Nariño, Barbacoas, 40 m, 1. x. 1990 [1 October 1990], M. Cooper (COOP).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340650117FF06FD76FE9AFC01.taxon	diagnosis	Diagnosis. Among relatively short-faced species of Chlerogella, C. picketti is distinctive for its metallic green coloration (Figs 126 – 128), setation of the metafemur (vide infra), and male terminalia (Figs 137 – 138).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340650117FF06FD76FE9AFC01.taxon	description	Description. Male: Total body length 8.09 mm; forewing length 5.33 mm. Head length 2.16 mm, width 1.56 mm. Clypeus beginning above lower tangent of compound eyes. Malar space 18.8 % compound eye length (malar length 0.26 mm; compound eye length 1.38 mm) (Figs 127 – 128). Upper interorbital distance 0.70 mm; lower interorbital distance 0.39 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere three times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.17 mm; mesoscutellum weakly bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by four times vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about 0.8 times as along as that of third submarginal cell; posterior border of third submarginal cell about 2.5 times as long as anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur minutely ciliate. Apical margin of SIII entire; apical margin of SIV broadly and weakly concave medially, produced lateral to concavity as short broad setose lobes, without furrow in apical half of disc; Figures Ι 26 – Ι 28. Holotype male of Chlerogella picketti sp. n. Ι 26 Lateral habitus Ι 27 Facial aspect Ι 28 Lateral aspect of head. apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 137 and 138. Clypeus and supraclypeal area imbricate with weak punctures separated by 1 – 2 times a puncture width; face with small, punctures separated by a puncture width or less, integument between punctures smooth, more widely spaced in malar space; punctures of face blending to smooth integument in ocellocular area and vertex, with punctures separated by 1 – 1.5 times a puncture width; gena smooth with small punctures separated by 1 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum finely imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum smooth with small punctures separated by 0.5 – 1.5 times a puncture width, anteromedially punctures becoming faint and integument somewhat imbricate; mes- oscutellum smooth with small punctures separated by a puncture width; metanotum finely imbricate with minute punctures separated by a puncture width. Preëpisternum smooth with punctures separated by a puncture width or less; mesepisternum smooth with small punctures separated by 0.5 – 2 times a puncture width; metepisternum finely imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible pale yellow except reddish at apex; labrum pale yellow; clypeal apex with narrow longitudinal band of pale yellow, remainder of clypeus and head brilliant metallic green with copper or golden highlights, principally on clypeus and supraclypeal area. Antenna dark brown. Mesosoma brilliant metallic green with copper or golden highlights (Fig. 126); tegula dark brown. Wing membranes faintly infumate; veins dark brown. Legs dark brown. Metasoma dark brown. Pubescence white to somewhat golden on legs and apically on metasoma. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters (particularly dense on protrochant- er), mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, base of metafemur, and metatibia except largely simple and somewhat sinuate. Apical margin of SIII with diffuse fringe of moderate-length white setae; SIV with small medioapical pads of short golden to fuscous setae bordering medial emargination; SV laterally with diffuse areas of long, inwardly-curved setae. Female: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340650117FF06FD76FE9AFC01.taxon	etymology	Etymology. The specific epithet is a patronym honoring dear friend and colleague, Dr. Kurt M. Pickett of the University of Vermont, a leading authority on the systematics of Vespidae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340630115FF06FBF3FEEDFA8D.taxon	description	Figs 129 – 131, 139 – 140, Map 4	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340630115FF06FBF3FEEDFA8D.taxon	materials_examined	Holotype. ♁, COLOMBIA: Porce, Ant. [Antioquia] Col, Tenche B., 2 – 4 Jama, 14 / 06 / 1997 [14 June 1997], A. Smith P. (MEFLG).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340630115FF06FBF3FEEDFA8D.taxon	diagnosis	Diagnosis. Chlerogella cyranoi resembles to some degree C. azurea and other small metallic blue Chlerogella with elongate heads. The new species can be distinguished from them by the simple SIV, the lack of white markings at the clypeal apex (Fig. 131), and the longer malar space (Figs 130 – 131).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340630115FF06FBF3FEEDFA8D.taxon	description	Description. Male: Total body length 7.62 mm; forewing length 5.20 mm. Head length 2.42 mm, width 1.48 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 50.7 % compound eye length (malar length 0.65 mm; compound eye length 1.28 mm) (Figs 130 – 131). Upper interorbital distance 0.73 mm; lower interorbital distance 0.39 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere 2.2 times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Upper portion of pronotum medially Figures Ι 29 – Ι 3 Ι. Holotype male of Chlerogella cyranoi sp. n. Ι 29 Lateral habitus Ι 30 Lateral aspect of head Ι 3 Ι Facial aspect. depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 0.98 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by vein width; 2 rs-m distad 2 m-cu by five times vein width, 2 rs-m weakly arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about one-half that of third submarginal cell; posterior border of third submarginal cell slightly less than twice length of anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV weakly indented medioapically, with small weak lobes lateral to weak medial concavity, without furrow in apical half of disc; apical margin of SV entire; apical margin of SVI emarginate; terminalia as depicted in figures 139 and 140. Clypeus and supraclypeal area finely imbricate with weak punctures separated by 0.5 – 2 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to smooth integument in ocellocular area and vertex, with punctures separated by 1 – 1.5 times a puncture width; gena smooth with small punctures separated by 1 – 2 times a puncture width; postgena imbricate and impunctate. Pronotum smooth with scattered minute punctures; mesoscutum smooth with small punctures separated by 1 – 2 times a puncture width; mesoscutellum and metanotum as on mesoscutum. Preëpisternum smooth with small punctures separated by 2 – 3 times a puncture width; mesepisternum smooth with small punctures separated by 2 – 6 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible yellow except reddish at apex; labrum yellow; clypeal apex narrowly yellow, remainder of clypeus and head brilliant metallic azurite blue. Antenna dark brown except ventral surface of scape yellow, pedicel and dorsal surface of scape brown. Mesosoma brilliant metallic azurite blue (Fig. 129); tegula dark brown. Wing membranes hyaline; veins dark brown. Legs dark brown. Metasoma dark brown. Pubescence white. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches. Apical margin of SIII without fringe, with diffusely scattered moderate-length white setae; SIV with small pads of short white to golden setae on small lobes bordering weak medial concavity; SV laterally with diffuse areas of long, inwardly-curved setae. Female: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340630115FF06FBF3FEEDFA8D.taxon	etymology	Etymology. The specific epithet is a patronym honoring Hector Savinien de Cyrano de Bergerac (1619 – 1655), French dramatist who was famously known for his overly large nose.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340610109FF06FA7CFC80FF22.taxon	description	Figs 132 – 134, Map 4	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340610109FF06FA7CFC80FF22.taxon	materials_examined	Holotype. ♀, COLOMBIA: Dept. Valle, Central de Anchicaya, 30 km E. Buenaventura, tropical, very wet forest, 560 m, 10. vi. 1975 [10 June 1975], malaise trap, R. C. Wilkerson (SEMC). Figures Ι 32 – Ι 34. Holotype female of Chlerogella tychoi sp. n. Ι 32 Lateral habitus Ι 33 Facial aspect Ι 34 Lateral aspect of head.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340610109FF06FA7CFC80FF22.taxon	diagnosis	Diagnosis. Chlerogella tychoi superficially resembles C. terpsichore, also from southwestern Colombia, but differs notably in the much longer malar space (Fig. 133), structure of the inner metatibial spur, and coloration of the procoxae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340610109FF06FA7CFC80FF22.taxon	description	Description. Female: Total body length 7.7 mm; forewing length 5.0 mm. Head length 2.45 mm, width 1.56 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 47.6 % compound eye length (malar length 0.68 mm; compound eye length 1.43 mm) (Figs 133 – 134). Upper interorbital distance 0.73 mm; lower interorbital distance 0.47 mm. Upper portion of pronotum slightly swollen, medially about 1.5 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; Figures Ι 35 – Ι 40. Male terminalia for Colombian Chlerogella species. Ι 35 Chlerogella terpsichore sp. n., hidden and fused sterna VII and VIII Ι 36 C. terpsichore sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) Ι 37 C. picketti sp. n., hidden and fused sterna VII and VIII Ι 38 C. picketti sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) Ι 39 C. cyranoi sp. n., hidden and fused sterna VII and VIII Ι 40 C. cyranoi sp. n., genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1 mm. intertegular distance 1.20 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1 rs-m distad 1 m-cu by two times vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m weakly arched; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs about as along as that of third submarginal cell; posterior border of third submarginal cell about two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with eight branches (not including apical portion of rachis). Clypeus and supraclypeal area smooth with weak punctures separated by 1 – 2 times a puncture width; face with small punctures separated by a puncture width or less; similar punctures and integument in ocellocular area and vertex; gena smooth with minute punctures separated by 1 – 4 times a puncture width; postgena imbricate and impunctate. Pronotum faintly imbricate with minute, scattered punctures; mesoscutum smooth with small punctures separated by a puncture width or less except outside of parapsidal lines separated by 0.5 – 2 times a puncture width; mesoscutellum smooth with minute punctures separated by a puncture width or less; metanotum faintly imbricate with minute punctures separated by 1 – 2 times a puncture width. Preëpisternum faintly imbricate with shallow punctures separated by 0.5 – 2 times a puncture width; mesepisternum smooth blending to faintly imbricate ventrally, with minute and shallow punctures separated by 3 – 6 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma finely imbricate. Mandible amber except reddish brown at apex; labrum amber; clypeal apex dark brown, remainder of clypeus and head brilliant metallic green. Antenna dark brown except basal two-thirds of scape amber. Mesosoma brilliant metallic green except pronotal lobe amber brown (Fig. 132); tegula translucent amber. Wing membranes largely hyaline, faintly tinged with yellow; veins brown except C and Sc + R dark brown. Legs amber except procoxa brilliant metallic green. Metasomal TI, TII, SI, and SII amber, remainder of terga and sterna dark brown. Pubescence golden. Male: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340610109FF06FA7CFC80FF22.taxon	etymology	Etymology. The specific epithet is a patronym honoring Danish nobleman and astronomer Tycho Brahe, the Latinized name adopted by Tyge Ottesen Brahe de Knudstrup (1546 – 1601). During his life Tycho painstakingly catalogued celestial movements, data later used by individuals such as his assistant Johannes Kepler. As a student Tycho lost part of his nose in a duel and he apparently wore a prosthetic nose made of silver and gold, although speculation and evidence exists to suggest it was perhaps made of copper.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340610109FF06FA7CFC80FF22.taxon	discussion	Comments. The holotype is in somewhat poor condition and was captured in a malaise trap with Lepidoptera. The metasoma and portions of the legs had become detached and were, at some point in the past, glued to edges of the locality label. An attempt was made to remove some of the numerous lepidopteran scales covering the individual but despite considerable cleaning there remains a preponderance of scales, however, they no longer obscure any surfaces or structures.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13407D0102FF06FED6FC76FF22.taxon	description	Figs 141 – 149, 154 – 155, Map 5	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13407D0102FF06FED6FC76FF22.taxon	materials_examined	Holotype. ♀, Venezuela: Aragua, Rancho Grande Biol. Stn., 10 ° 21 ' N, 67 ° 41 ' W, 1370 m, 1 – 8 March 1995, R. W. Brooks, ex: flight intercept trap (SEMC). Paratypes. VENEZUELA: 1 ♀, Aragua, Parque Nac. H. Pittier, Rancho Grande, La Toma, 9. x. 1992 [9 October 1992], 1100 m, sweep [net], J. L. Garcia, L. Chacón (CNC); 2 ♁♁, Aragua, Parque Nac. H. Pittier, Portachuello Pass, 13. iv. 1994, 1000 m, L. Masner (CNC); 5 ♁♁, Aragua, Rancho Grande N. P., 18. viii – 3. ix. 1992 [18 Au-gust – 3 September 1992], L. Masner, maxinet, cloud forest, 1000 m (CNC); 1 ♁, Aragua, Rancho Grande N. P., 18. viii – 3. ix. 1992 [18 August – 3 September 1992], L. Masner, maxinet, cloud forest, 1000 m (SEMC); 1 ♀, Aragua, Rancho Grande Bio. Sta., H. Pittier N. P., 30 November 1982, N. Ramirez, # AS- 42, ex flowers “ Corupelis ” (CUIC); 3 ♀♀, 1 ♁, Pico Periquito, 16 Aug [August] 1967, R. W. Poole (USNM); 1 ♀, 1 ♁, Pico Periquito, 16 Aug [August] 1967, R. W. Poole (SEMC); 1 ♀, Aragua, Rancho Grande Biol. Stn., Portachuelo Pass, 10 ° 21 ' 0 " N, 67 ° 41 ' 0 " W, 1100 m, 4 June 1998, J. Ashe, R. Brooks, R. Hanley, ex: insects moving through pass against wind migration (SEMC); 1 ♁, Aragua, Rancho Grande, 4. vii. 1988 [4 July 1988], L. Stange, C. Porter (SEMC); 1 ♁, Aragua, Rancho Grande, 25 March – 22 April 1960, F. H. Test (UMMZ); 1 ♀, Aragua, P. N. H. Pittier, Rancho Grande, 1100 m, 17. ix. 1993 [17 September 1993], F. Vasquez (MIZA); 1 ♁, Aragua, P. N. H. Pittier, Cymino, La Cumbre, 1100 – 1500 m, 3. ix. 1992 [3 September 1992], Barrido, J. L. Garcia (MIZA); 1 ♁, Aragua, P. N. H. Pittier, La Toma, 1100 m, 2. ix. 1992 [2 September 1992], J. L. Garcia (Barrido) (MIZA); 1 ♁, Aragua, P. N. H. Pittier, Rancho Grande, La Toma, 1100 m, 21. viii. 1994 [21 August 1994], J. L. Garcia (Barrido) (MIZA).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13407D0102FF06FED6FC76FF22.taxon	diagnosis	Diagnosis. Chlerogella oresbios is most similar to C. cochabambensis from Bolivia (vide supra). The former can be distinguished by the more distinctive caerulean blue coloration, the more sparsely punctured mesoscutum, the relatively straight 2 rs-m in the forewing, the structure of the SIV and terminalia in males (Figs 149, 154 – 155), and the slightly smaller body size.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13407D0102FF06FED6FC76FF22.taxon	description	Description. Female: Total body length 8.17 – 8.76 mm; forewing length 6.07 – 6.13 mm. Head length 2.35 – 2.37 mm, width 1.56 – 1.64 mm. Clypeus beginning at or minutely above lower tangent of compound eyes. Malar space 26.3 – 28.4 % compound eye length (malar length 0.39 – 0.42 mm; compound eye length 1.48 mm) (Figs 142 – 143). Upper interorbital distance 0.82 – 0.84 mm; lower interorbital distance 0.56 – 0.60 mm. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus distinctly broad dorsally at junction of scrobal sulcus and upper portion Figures Ι 4 Ι – Ι 43. Female of Chlerogella oresbios sp. n. Ι 4 Ι Lateral habitus Ι 42 Facial aspect Ι 43 Lateral aspect of head. of preëpisternal sulcus; intertegular distance 1.30 – 1.31 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by twice vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell not narrowed anteriorly, anterior border of second submarginal cell along Rs slightly longer than that of third submarginal cell; posterior border of third submarginal cell nearly two times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur with 6 – 7 branches (not including apical portion of rachis). Figures Ι 44 – Ι 49. Male of Chlerogella oresbios sp. n. Ι 44 Lateral habitus Ι 45 Facial aspect Ι 46 Lateral aspect of head Ι 47 Mesoscutum and mesoscutellum, dorsal aspect Ι 48 Posterior view of mesosoma Ι 49 Apical metasomal sterna. Map 5. Collection localities for Venezuelan Chlerogella. Clypeus and supraclypeal area imbricate with weak punctures separated by 1 – 3 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to colliculate or coarsely imbricate integument in ocellocular area and vertex, with minute punctures separated by 2 – 5 times a puncture width; gena smooth with small punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punctures separated by 1 – 3 times a puncture width; mesoscutum coarsely imbricate with small punctures separated by 1 – 2 times a puncture width on lateral thirds and along posterior border, medially punctures separated by 1 – 3.5 times a puncture width, medioanteriorly punctures becoming exceedingly faint to absent; mesoscutellum imbricate with small punctures separated by 0.5 – 1.5 times a puncture width; metanotum imbricate with small punctures separated by 1 – 2 times a puncture width. Preëpisternum smooth to faintly imbricate with small punctures separated by 1.5 – 4 times a puncture width; mesepisternum imbricate with small punctures separated by 2 – 5 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible dark brown except reddish at apex; labrum dark brown; clypeal apex dark brown, remainder of clypeus and head dark metallic blue. Antenna dark brown except ventral surfaces of flagellum slightly lighter. Mesosoma dark metallic blue (Fig. 141); tegula brown to dark brown. Wing membranes faintly yellowed or infumate; veins dark brown except pterostigma slightly lighter. Legs dark brown except apical tarsomeres slightly lighter. Metasoma dark brown, with apical margins of terga translucent light brown to brown. Pubescence white to slightly golden except intermingled with fuscous setae on mesoscutum, mesoscutellum, metanotum, outer surfaces of protibia and protarsus, outer surfaces of mesotibia and mesotarsus, inner surface of metatibia, TIII – VI, and SIV – VI; black on inner surfaces of tarsi and tibiae. Male: As described for the female except as follows: Total body length 8.96 – 9.79 mm; forewing length 6.17 – 6.20 mm. Head length 2.50 – 2.53 mm, width 1.64 – 1.66 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 28.6 – 29.1 % compound eye length (malar length 0.44 mm; compound eye length 1.51 – 1.54 mm) (Figs 145 – 146). Upper interorbital distance 0.76 – 0.78 mm; lower interorbital distance 0.42 – 0.44 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere three times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Intertegular distance 1.25 – 1.33 mm; mesoscutellum bigibbous (Figs 147 – 148). Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV medioapically produced, with narrow concave emargination between setose lobes, with narrow shallow medio-longitudinal furrow in apical half of disc, not bordered by carinae (Fig. 149); apical margin of SV weakly concave; apical margin of SVI emarginate; terminalia as depicted in figures 154 and 155. Mandible, labrum, and clypeal apex white to off-white. Ventral surface and base of scape pale yellow to light brown. Inner surface of protibia, profemur, and inner apex of mesofemur yellow-brown to brown. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate and sinuous at apices. Apical margin of SIII with fringe of moderate-length off-white to golden setae, such setae more dense medially to form small, narrow patch; SIV with medioapical pads of short golden to offwhite setae bordering medial emargination; SV laterally with diffuse areas of elongate, inwardly-curved setae.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13407D0102FF06FED6FC76FF22.taxon	etymology	Etymology. The specific epithet is a combination of the Greek terms oreos, meaning “ mountain ”, and bios, meaning “ life ”.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13407D0102FF06FED6FC76FF22.taxon	discussion	Comments. A single female was labeled as being collected at flowers of “ Corupelis ”. I have been unable to determine to what plant this name corresponds.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340760101FF06FED6FD67FC01.taxon	description	Figs 150 – 153, 156 – 157, Map 5	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340760101FF06FED6FD67FC01.taxon	materials_examined	Holotype. ♁, VENEZUELA: Aragua, Rancho Grande N. P., 18. viii – 3. ix. 1992 [18 Au-gust – 3 September 1992], L. Masner, maxinet, cloud forest, 1000 m (CNC). Paratype. VENEZUELA: 1 ♁, Aragua, Rancho Grande N. P., 18. viii – 3. ix. 1992 [18 August – 3 September 1992], L. Masner, maxinet, cloud forest, 1000 m (CNC).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340760101FF06FED6FD67FC01.taxon	diagnosis	Diagnosis. This species is similar to its compatriot C. oresbios but can be quickly recognized by the extensive yellow markings (Fig. 150, 153) and structure of the terminalia (Figs 156 – 157).	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340760101FF06FED6FD67FC01.taxon	description	Description. Male: Total body length 7.92 – 8.42 mm; forewing length 5.80 – 6.13 mm. Head length 2.32 – 2.42 mm, width 1.59 – 1.64 mm. Clypeus beginning just below lower tangent of compound eyes. Malar space 31.2 – 32.2 % compound eye length (malar length 0.44 – 0.47 mm; compound eye length 1.41 – 1.46 mm) (Figs 151 – 152). Upper interorbital distance 0.70 – 0.73 mm; lower interorbital distance 0.39 – 0.42 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere three times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields not disrupted. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.15 – 1.22 mm; mesoscutellum strongly bigibbous (Fig. 153). Basal vein distad cu-a by three times vein width; 1 rs-m distad 1 m-cu by twice vein width; 2 rs-m distad 2 m-cu by six times vein width, 2 rs-m straight; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell not narrowed anteriorly, anterior border of second submarginal cell along Rs about as long as that of third submarginal cell; posterior border of third submarginal cell nearly 1.75 times longer than anterior border. Distal hamuli arranged 2 - 1 - 2. Inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV medioapically produced, with narrow concave emargination between setose lobes, with narrow shallow medio-longitudinal furrow in apical half of disc, not bordered by carinae; apical margin of SV weakly concave; apical margin of SVI emarginate; terminalia as depicted in figures 156 and 157. Clypeus and supraclypeal area imbricate with weak punctures separated by 1 – 3 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to colliculate or coarsely imbricate integument in ocellocular area and vertex, with minute punctures separated by 2 – 5 times a puncture width; gena smooth with small punctures separated by 1 – 3 times a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute punc- Figures Ι 50 – Ι 53. Male of Chlerogella xuthopleura sp. n. Ι 50 Lateral habitus Ι 5 Ι Facial aspect Ι 52 Lateral aspect of head Ι 53 Dorsum of mesosoma. tures separated by 1 – 3 times a puncture width; mesoscutum coarsely imbricate with small punctures separated by 1 – 2 times a puncture width on lateral thirds and along posterior border, medially punctures separated by 1 – 3.5 times a puncture width, medi- Figures Ι 54 – Ι 57. Male terminalia of Venezuelan Chlerogella species. Ι 54 Chlerogella oresbios sp. n., hidden and fused sterna VII and VIII Ι 55 C. oresbios sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) Ι 56 C. xuthopleura sp. n., hidden and fused sterna VII and VIII Ι 57 C. xuthopleura sp. n., genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1.0 mm. oanteriorly punctures becoming exceedingly faint to absent; mesoscutellum imbricate with small punctures separated by 0.5 – 1.5 times a puncture width; metanotum imbricate with small punctures separated by 1 – 2 times a puncture width. Preëpisternum smooth to faintly imbricate with small punctures separated by 1.5 – 4 times a puncture width; mesepisternum imbricate with small punctures separated by 2 – 5 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma weakly imbricate. Mandible, labrum, and clypeal apex white, remainder of clypeus and head dark metallic blue (Figs 151 – 152), with yellowish brown patches at clypeal base and just apical of anterior tentorial pits in clypeus and malar space. Antenna brown except scape and pedicel yellow. Mesosoma dark metallic blue, with slight purplish tinge, except pronotum yellow but brown anteriorly, propodeum yellow (Fig. 150, 153), upper half mesepisternum yellow, and metepisternum yellow with brown area in upper half; tegula translucent yellowish brown, darker along posterior border. Wing membranes faintly yellowed or infumate; veins dark brown except pterostigma slightly lighter. Legs largely yellow, marked with brown on tibiae and tarsi brown to dark brown (Fig. 150). Metasoma brown except TI and TII yellow with apical margins brown and with apicomedial spot of brown connecting to brown marginal zone; sterna brown except SI and SII yellow with apical margins brown. Typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofemur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate and sinuous at apices. Apical margin of SIII with moderately dense fringe of moderate-length off-white to golden setae; SIV with medioapical pads of short golden fuscous setae bordering medial emargination; SV laterally with diffuse areas of elongate, inwardly-curved setae. Female: Unknown.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C1340760101FF06FED6FD67FC01.taxon	etymology	Etymology. The specific epithet is a combination of the Greek words xouthos, meaning “ yellowish ”, and pleuron, meaning “ side ”.	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13404D0139FF06FBF2FEC9FA3C.taxon	description	buyssoni 18 cochabambensis 9, 2 – 8, 14 – 15 cooperella 51, 80 – 83, 87 – 89 cyranoi 78, 129 – 131, 139 – 140 dolichorhina 34, 45 – 47 elysia 63, 99 – 106, 115 – 116 eumorpha 43, 62 – 67, 72 – 73 euprepia 60, 95 – 98 hauseri 14, 9 – 13, 16 – 17 hypermeces 66, 107 – 114, 117 – 118 materdonnae 39, 55 – 61, 70 – 71 mourella 58, 92 – 94	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
F0136C13404D0139FDF5FC4BFCEDFA11.taxon	description	oresbios 84, 141 – 149, 154 – 155 picketti 76, 126 – 128, 137 – 138 rostrata 27, 1, 30 – 32 silvula 54, 84 – 86, 90 – 91 terpsichore 72, 119 – 125, 135 – 136 tychoi 80, 132 – 134 vachali 22, 24 – 26 xuthopleura 89, 150 – 153, 156 – 157 Bolivia map 12 Colombia map 69 Ecuador map 33 Peru map 21 Venezuela map 87	en	Engel, Michael (2010): Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis. ZooKeys 47 (47): 1-100, DOI: 10.3897/zookeys.47.416
