Glyptolenus arboricola, Traces, 2024

Glyptolenus arboricola sp. nov.

( Fig. 9c & 12a-d)

ZooBank:https://zoobank.org/ CD084CC2-6543-4EF0-B38C-04D95856E918

Holotype, ♂, Ecuador, Provincia Cotopaxi, Cantón Sigchos, Las Pampas , Bosque integral de Otonga, 11.VII.2007, C. Proaño & A. Barragán leg. ( QCAZ).

Paratypes ( 18 ♂, 21 ♀)

- 4 ♀, 1 ♂, same data as the holotype ( QCAZ) ;

- 2 ♀, 4 ♂, Ecuador, Provincia Cotopaxi, Otonga , 1950 m, arboreal, pyrethrum fogging, 3-5.VII.2001, P. Moret leg. ( CPM) ;

- 5 ♂, 5 ♀: Ecuador, Cotopaxi, Otonga , 00°26.166’S, 79°00.204’W, 1975 m, 1.VI.2007, fumigación, C. Proaño & A. Barragán leg. ( CGA) GoogleMaps ; - 1 ♀, Ecuador, Provincia Cotopaxi, Cantón Sigchos, Las Pampas , Bosque Integral Otonga , 11.VII.2007, C. Proaño & A. Barragán leg. // Laboulbeniales, n. 3138, Walter Rossi ( CPM) ;

- 1 ♀, Ecuador, Provincia Cotopaxi, Cantón Sigchos, Las Pampas , Bosque integral Otonga , 2.VI.2007, C. Proaño & A. Barragán leg. // Laboulbeniales, n. 3139, Walter Rossi ( CPM) ;

- 1 ♀, Ecuador, Provincia Cotopaxi, Cantón Sigchos, Las Pampas , Bosque integral Otonga , 2.VI.2007, C. Proaño & A. Barragán leg. ( QCAZ) ;

- 2 ♀, Ecuador, Provincia Cotopaxi, Otonga , 0°25’07.1”S, 79°00’14.0”W, 2065 m, 21-23.VII.2006, P.M. Giachino leg. ( CPMG) GoogleMaps ; - 1 ♂, Ecuador, Pichincha ( sic), Otonga , 1870 m, 23.VII.2006, L. Picciau leg. ( CLP) ;

- 1 ♂, Ecuador, Provincia Cotopaxi, La Otonga , 2000 m, ex: mosses, IX.1996, F. Nisch leg. ( QCAZ) ;

- 1 ♂, Ecuador, Provincia Cotopaxi, Otonga , 2000 m, ex: mosses, 2.X. 1996, F. Nisch leg. ( QCAZ) ;

- 1 ♂: Ecuador, Prov. Cotopaxi, Otonga Nature Reserve , 1800-2200 m, 9.VII.2023, G. Allegro leg. ( CGA) ;

- 3 ♂, 5 ♀: Ecuador, Cotopaxi, Otonga , 0°25.012’S, 79°00.140’W, 2065 m, 4.VI.2008, G. Onore leg. ( CGA) GoogleMaps ;

- 1 ♂, Ecuador, Provincia Pichincha, Tandayapa , Bellavista Lodge, WP 81, 0°0′56.6″S, 78°40′49.1″W; 2250 m, 2.XI.2015, Bromelia fogging, P. Moret leg. // Voucher PM 081-06 ( CPM) GoogleMaps ;

- 1 ♂, Ecuador, Provincia Pichincha, Tandayapa , Bellavista Lodge, WP 81, 0°0′56.6″S, 78°40′49.1″W; 2250 m, 2.XI.2015, epiphytes fogging, P. Moret leg. ( CPM) GoogleMaps .

Diagnostic combination. – G. arboricola sp. nov. can be distinguished from all congeners, except G. humicola sp. nov., by the combination of the following characters: Pronotum elongate, slightly longer than wide; basolateral setae far anterior to angle, inserted at 1/3 of the pronotum length. Humeri effaced; basal bead of elytra obsolete between the scutellum and the third stria; third elytral interval asetose. Apex of MTT4 emarginate, without protruding ventral lobes; ventral face of MTT4 with two parallel rows of three setae each; MTT5 with two pairs of long ventral setae.

Description

Habitus . – Fig. 12a. Brachypterous. Body length: 6.0- 6.6 mm.

Colour. – Head, pronotum and elytra reddish-brown, the head slightly lighter and more reddish in most specimens; femora reddish-brown to brownish, tibiae and tarsi flavo-testaceous to rufo-testaceous; antennae and palpi yellowish. Upper surface of the body smooth and shiny.

Microsculpture, mesh pattern. – Obsolete on head, pronotum and elytra.

Head. –Convex, relatively broad;eyes small, weakly convex, genae flat, half as long as the eyes; collar constriction slightly developed. Mandibles long, thin and acute. Mentum tooth simple. Antennae slender, moderately long, with four antennomeres extending backward beyond the base of the pronotum.

Prothorax. – Fig. 12b. Pronotum elongate, slightly longer than wide (PL/PW = 1.05). Hind angles completely rounded; sides evenly arcuate; anterior angles obtuse, not protruding at all. Laterobasal impressions obsolete, reduced to a very shallow transverse concavity; lateral margins very narrow; basal and apical beads almost completely erased. Two pairs of lateral setae; basolateral setae far anterior to angle, inserted at 1/3 of the pronotum length. Sides of the prosternal process not bordered.

Meso- and metathorax. – Elytra ovoid; humeri effaced; basalbead very short, erased between the scutellum and the third stria. Striae thin and shallow, obsolete basally except the first one, faintly and shallowly punctate, with short interruptions between the punctures. All intervals flat on the disc, intervals 3-6 slightly depressed near apex. Parascutellar setiferous pore present; third interval asetose. Subapical sinuation very weak; apex separately and shortly rounded. Umbilicate series of 15 setiferous punctures (grouped 6-2-7 or 6-9). Metathoracic wings vestigial.

Abdomen. – Last visible abdominal ventrite evenly rounded apically, with one pair ( ♂) or two pairs ( ♀) of setae along its apical margin.

Legs. – Slender; metafemora with one or two setae on the anterior ridge and with two ventroposterior setae. Dorsal face of protibiae flattened apically, feebly sulcate basally; mesotibiae dorsally canaliculate; metatibiae dorsally carinate. Dorsal face of all tarsi bisulcate, sculpture partly erased. Apex of PT4 and MST4 bilobate; apex of MTT4 emarginate, without protruding ventral lobes. Apical lobes of PT4 and MST4 with long, relatively narrow hyaline phanera; apex of MTT4 with two long dorsolateral setae and one long hyaline ventrolateral seta on the outer side; ventral face of MTT4 with two parallel rows of three setae. Fifth tarsomeres with two pairs of long ventral setae.

Male genitalia. – Fig. 12c-d. Median lobe short and thick, evenly arcuate in lateral view; apex very short, broad, subtriangular in dorsal view with a blunt tip (almost rounded in specimens from Otonga). Endophallus without sclerotized structures.

Female genitalia. – Fig. 9c. Gonocoxite 2 arcuate, with 3 ensiform setae on the outer ridge. Bursa copulatrix conical, as long as wide, with a curved zone of small lumenal microtrichia. Spermathecal duct short; spermatheca small, fusiform; spermathecal gland’s duct connected to the base of the spermatheca.

Habitat. – Montane cloud forest between 1800-2250 m a.s.l. Exclusively arboreal, common at Otonga in epiphytes (especially Bromelias) and mosses. This species was never collected by sieving leaf litter or in pitfall traps.

Geographic distribution. – Westernslope of the Cordillera Occidental in northern Ecuador ( Cotopaxi and Pichincha provinces).

Etymology. – Modern Latin adjective meaning “living in the trees”.