Leptostylus boliviensis, Santos-Silva & Botero, 2023

Leptostylus boliviensis View in CoL sp. nov.

( Fig. 7-12)

Bank:http://zoobank.org/ E0FAA684-AEFB-44A0-81C6-7E1309E955D5

Holotype, ♀, BOLIVIA, Santa Cruz: Potrerillo del Guendá, Snake Farm , 17º40’S 63º27’W, 370-400 m, 21-24.X.2011, Wappes & Skillman leg.( MNKM). GoogleMaps

Paratypes, BOLIVIA, Santa Cruz :

- Potrerillo del Guendá , 17º40.26’S 63º27.44’W, 1 ♀, 9-29.XI.2006, B.K. Dozier leg. ( FSCA) GoogleMaps ;

- 40 km N Bermejo, Refugio Los Volcanes , 1045-1350 m, 18º06’S 63º36’W, 1 ♀, 31.10- 3.XI.2013, Wappes & Kuckartz leg. ( MZSP) GoogleMaps ;

- Huaico , near Potreillo del Guendá, 430 m, 63º26’S 17º40’W, 1 ♂, 27-29.X.2013, Wappes & Kuckartz leg. ( FSCA) GoogleMaps .

Description of the holotype ( Fig. 7-10)

Coloration. – Head capsule blackish, exceptbrownventralsurface.Ventral mouthparts mostly yellowish brown, except palpomeres dark brown with reddish-brown apex; anteclypeus yellowish brown with irregular brown areas interspersed; labrum dark reddish brown on posterior 2/3, yellowish brown on anterior third; scape and pedicel dark brown; antennomeresIII–IV brown with irregular dark-brown areas interspersed,except blackish apex;antennomeres V– VI light brown, with irregular brown maculae interspersed, except dark-brown base and apex; antennomeres VII–X orangish on wide central area, dark brown basally and apically; antennomere XI brown, slightly lighter centrally and apically.Pronotum blackish,slightlylighterlaterally;sidesof prothorax blackish; prosternum and prosternal process dark brown. Mesoventrite brown centrally (more dark reddish brown depending on light intensity), dark brown laterally. Mesanepisternum and mesepimeron dark brown, almost black on some areas. Mesoventral process mostly blackish. Metanepisternum and metaventrite dark brown, sides of metaventrite slightly darker. Elytra dark brown dorsally, with blackish areas interspersed on anterior half, black laterally. Coxae dark brown, slightly more dark reddish brown on inner region of metacoxae. Pro- and metatrochanters dark yellowish-brown with blackish apex; mesotrochanters dark brown. Femora dark brown, except dark reddish-brown posterior half of dorsal surface of meso- and metafemoral club.Tibiae and tarsomeres I–IV dark brown; basal 3/4 of tarsomere V reddish brown and apical quarter brown. Ventral surface of abdomen blackish on basal half of ventrite 1, dark reddish brown on remaining surface of ventrite 1, except light reddish-brown apex, mostlyreddishbrown on ventrite 2–4, exceptlightreddish-brown apex, blackish on basal third of ventrite 5 and dark reddish brown on apical 2/3 of ventrite 5.

Head. – Frons densely, minutely punctate; with dense brown pubescence, and areas with dense yellowish-white pubescence interspersed (whiter depending on lightintensity); withone long, erect setae close to eyes, setae dark brown basally, yellowish brown apically. Antennal tubercles and area between them with pubescence as on frons; remaining surface of vertex and area behind upper eye lobes with dense yellowish-white pubescence and irregular brownish pubescent maculae interspersed. Area behind lower eye lobes with dense yellowish-white pubescence close to eye, except glabrous about middle, and glabrous close to prothorax. Genae with dense yellowish-white pubescence, except area with sparse brownish pubescence, glabrous apex and area close to clypeus and frons. Wide central area of postclypeus mostly with abundant brownish pubescence close to frons, except glabrouscentral region;area close to anteclypeus with abundant, moderately short yellowish-white setae directed forward, absentcentrally, andlong yellowish setae interspersed, distinctly more abundant laterally; with one very long seta on each side, setae dark brown basally, gradually yellowish toward apex. Sides of postclypeus glabrous. Labrum with somewhat abundant yellowish-white pubescence on posterior 2/3, glabrous onanterior third, except anterior marginwithdensefringe of yellowish-brown setae; posterior third with long, erect setae interspersed, setae brownish basally, gradually yellowish toward apex. Gulamentum smooth, glabrous; intermaxillary process with abundant yellowish-white pubescence not obscuring integument. Distance between upper eye lobes 0.26 times distance between outer margins of eyes; in frontal view, distance between lower eye lobes 0.58 times distance between outer margins of eyes.Antennae 2.0 times elytral length, reaching elytral apex at apex of antennomere VI.Basal 3/4 of scape withdense yellowish-white pubescence and with irregular brownish pubescent maculae intersperseddorsally andlaterally, largestmacula locatedon basal quarter;apical

FAUNITAXYS - ISSN (Print): 2269 - 6016 - ISSN (Online): 2970 - 4960

7 -10. Holotype ♀. 7. Dorsal habitus. 8. Ventral habitus. 9. Lateral habitus. 10. Head, frontal view.

11 -12. Paratype ♂. 11. Dorsal habitus. 12. Ventral habitus.

quarter with abundant dark-brown pubescence, abundant yellowish-brown pubescence laterally, and somewhat abundant yellowish-white pubescence ventrally. Pedicel with dark-brown pubescence not obscuring integument and yellowish-brown pubescence interspersed, especially basally and ventrally. Antennomeres III–IV with abundant light yellowish-brown pubescence, more yellowish white toward apical region, with irregular areas with brownish pubescence interspersed, except apex with dark brown pubescence not obscuring integument. Antennomeres V–X with dense whitish pubescence on wide central region and dark-brown pubescence not obscuring integument basally and apically,V–VII with some brownish pubescent maculae interspersed centrally. Antennomere XI mostly with brownish pubescence, with short, both decumbent and erect yellowish setae interspersed, except apex with abundant yellowish-white pubescence.

Antennal formula based on length of antennomere III:

– Scape = 0.91. – Pedicel = 0.14. – IV = 0.75. – V = 0.64. – VI = 0.55. – VII = 0.44. – VIII = 0.43. – IX = 0.42. – X = 0.34. – XI = 0.34.

Thorax. – Prothorax wider than long; sides with large, rounded projection about middle. Pronotum withgibbosities, oneon each side of anterior half, one elongated located centrally on posterior half, another transverse, less elevated than the others, located on each side of posterior half; with transverse row of coarse punctures near anterior and posterior margins, and sparse coarse punctures on remaining surface, except close to anterior and posterior margin and on gibbosities; with small dark-brown pubescent macula centrally, similar maculae close to anterior and posterior margins; remaining surface mostly with dense white pubescence, slightly sparser centrally, except wide, arched yellowish-brown pubescent macula on each side of central white pubescence, on part of lateral tubercles of prothorax, sides of anterior dark-brown pubescent macula and sides close to anterior margin with yellowish-brown pubescence with whitish pubescence interspersed, and sides of posterior dark-brown pubescent macula with yellowish-brown pubescence. Sides of prothorax with densewhitishpubescencewith irregular areaswith densebrownish pubescence interspersed. Prosternum with abundant yellowish-white pubescence not obscuringintegument. Prosternalprocesswith abundantwhitishpubescencenot obscuring integument; narrowest area 0.6 times procoxal width. Mesoventrite with sparse yellowish-white pubescence centrally, and abundant yellowish-white pubescence not obscuring integument laterally, with whitish pubescence interspersed;mesanepisternum with abundant yellowish-brown pubescence not obscuring integument superiorly and mostly whitish pubescence inferiorly; mesepimeron with abundant whitish pubescence not obscuring integument. Mesoventral process with abundant grayish-white pubescence not obscuring integument;narrowest area 0.78times mesocoxal width. Metanepisternum with dense whitish pubescence and dense yellowish-brown pubescence interspersed, especially anteriorly. Sides of metaventrite with dense white pubescence with brownish pubescent maculae interspersed on posterior half; remaining surface with abundant whitish pubescence not obscuring integument. Scutellum with dense, longitudinal whitish pubescent band centrally, and dense yellowish-brown pubescence laterally, with whitish pubescence interspersed.

Elytra. –With two longitudinal carinae, from near base to about posterior quarter;with sparse, small tubercles throughout,tubercles more distinct on area of centrobasal crest;humeralcarina moredistinctonmiddleof elytra; somewhat abundantly, coarsely punctate, punctures sparser on posterior third; apex slightly obliquely truncate. Anterior sixth of dorsal surface with transverse, light pubescent band, pubescence mostly pale yellow with whitish pubescence interspersed, except humeral region with light yellowish-brown pubescence, circum-scutellar region mostly with whitish pubescence and brownish pubescence interspersed, with small brownish pubescent spotabout middle, and irregular white pubescent macula laterallyclose toposterior margin of transverse light pubescent band; tubercle on area of centrobasal crest with brownish pubescence; with wide, oblique brown pubescent band, starting on suture slightly after middle of elytra and ending on center of posterior third; with large subcircular yellowish-brown pubescent macula near anterior transverse light pubescent band, from near suture to about middle of elytra, followed by slightly arched, longitudinal yellowish pubescent band ending on oblique brown band; area between yellowish-brown macula, longitudinal yellowish-brown band and suture mostly with white pubescence, with irregular brownish pubescent spots interspersed, pubescence more dark yellowish brown on sutural region close to oblique brown pubescent band; with large, irregular white pubescent macula laterally, from middle of elytra to posterior quarter, reaching epipleural margin; area of dorsal surface, between transverse light pubescent band, large white macula, and longitudinal yellowish-brown pubescent band with slightly distinct, fragmented, longitudinal yellowish-brown pubescent band, and remaining surface with testaceous pubescence with whitish pubescence interspersed on some areas, except irregular dark-brown pubescent macula about middle close to humeral carina; area close to posterior margin of oblique brown pubescent band with yellowish-brown pubescence; posterior quarter with white pubescence close to suture, except a few brownish pubescent spots adjacent to suture, and pale-yellow pubescence laterally, including area close to epipleural margin; nearly all tubercles with bristly dark-brown pubescence. Area between humeral carina and epipleural margin with abundant yellowish-brown pubescence with whitish pubescence interspersed on some areas, except epipleural margin with dashed yellowish-white pubescence.

Legs. – Femora with dense white pubescence with irregular brownish pubescent maculae interspersed, especially dorsally and laterally, except dark-brown pubescent macula on base of femoral club. Dorsal and lateral surfaces of tibiae with abundant, both yellowish-whiteand lightyellowish-brownpubescence, excepttwodark pubescentbands, onelocatedonbasalthird, moreclosertomiddle on protibiae, another on posterior third; ventral surface of protibiae mostly with abundant whitish pubescence on basal 2/3, and dense, bristly, both dark brown and yellowish-brown pubescence on apical third; ventral surface of meso- and metatibiae mostly with whitish pubescence on basal 2/3, and bristly yellowish-brown pubescence on apical third; dorsal sulcus of mesotibiae with short, thick, erect black setae. Basal 2/3 of dorsal surface of tarsomeres I–III and V with abundant white pubescence, posterior third with sparse dark yellowish-brown pubescence; metatarsomere I about as long as II–III together.

Abdomen. – Ventriteswith densewhitishpubescence.Apex of ventrite

5 truncate.

Male ( Fig. 11-12). Similar to female, differing by femoral clubs wider, and apex of ventrite 5 slightly emarginate centrally.

Variation. – Metacoxae entirely dark brown; trochanters dark reddish brown with blackish apex; posterior half of dorsal surface of meso- and metafemoral club mostly brown; ventral surface of abdomen mostly dark reddish brown on ventrites 2–5; mesanepisternum and mesepimeron mostly with whitish pubescence with yellowish-brown pubescence interspersed; transverse pubescent band on base of elytra mostly whitish; posterior oblique pubescent band on dorsal surface of the elytra mostly lighter, except on longitudinal carinae.

Dimensions (mm) (Holotype ♀ / paratype ♂ / paratypes ♀). – Total length, 6.25/6.10/6.00–6.15;

– Prothoracic length, 1.25/1.25/1.15–1.30;

– Anterior prothoracic width, 1.50/1.50/1.40–1.55;

– Posterior prothoracic width, 1.80/1.90/1.75–1.90;

– Maximum prothoracic width, 2.05/2.20/2.00–2.20;

– Humeral width, 2.80/2.85/2.75–2.90;

– Elytral length, 4.70/4.55/4.55–4.65.

Etymology. – The name refers to the country of the type-locality.

Remarks. – Leptostylus boliviensis sp. nov. is similar to L. plautus ( Fig. 21), but differs as follows: distance between the upper eye lobes larger than the maximum diameter of the scape in both sexes; posterior oblique brown pubescent band without white pubescent band close to its anterior margin; elytra with large white pubescent macula laterally from about the middle to the posterior quarter. In L. plautus , the distance between upper eye lobes is equal to maximum diameter of the scape in bothsexes,posterior oblique brownpubescent band has white pubescent band close to its anterior margin, and the elytra do not have a large white pubescent macula from the middle to the posterior quarter. Leptostylus boliviensis sp. nov. differs from Leptostylus carinatus sp.nov. by distance between the upper eye lobes larger than the maximum diameter of the scape, elytra with light basal pubescence (absent in Leptostylus carinatus ), elytra with wide white pubescent macula laterally from the middle to the posterior quarter (absent in Leptostylus carinatus ), elytra without blackish pubescent macula on posterior quarter (present in Leptostylus carinatus ), and elytra without oblique white pubescent band about middle of the dorsal surface (present in Leptostylus carinatus ).

FAUNITAXYS - ISSN (Print): 2269 - 6016 - ISSN (Online): 2970 - 4960

13- 16. Leptostylus xanthopygus Bates, 1880 , ♀ from Honduras. 13. Dorsal habitus. 14. Ventral habitus. 15. Lateral habitus. 16. Head, frontal view. 17. Leptostylus retrorsus Bates, 1885 , ♀ from Honduras, dorsal habitus.