Desutterella colombiana Souza-Dias, 2017

Souza-Dias, Pedro G. B., Campos, Lucas Denadai De & Mello, Francisco De Assis Ganeo De, 2017, Desutterella n. gen., a new genus of Luzarinae (Orthoptera: Grylloidea: Phalangopsidae) and the first report of the Aracambiae group Souza-Dias & Desutter-Grandcolas, 2014 in the Amazon, Zootaxa 4350 (1) : -

Desutterella colombiana Souza-Dias n. sp.

Figures 5–6

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:500286

Type locality. Colombia, Amazonas Department Leticia (4°7'49"S, 69°58'7"W).

Etymology. The specific epithet is a gentilic adjective that refers to Colombia, where this species can be found. Type material. Holotype male. Holotype: Amazonas. Leticia. Km11 via Tarapaca. 26/10/02 alt. 170m. 6.sist.A. 091-059 (MZSP).

Diagnosis. General aspect similar to D. manauara n. sp., differing mainly in male genitalia characters. The phallic complex of D. colombiana Souza-Dias n. sp. is longer than in D. manauara Souza-Dias n. sp.; pseudepiphallic parameres (PsP) highly sclerotized; PsP2 with two pairs of distinct projections: first projection elongated, upcurved, larger than in D. manauara n. sp.; second projection small, medial, semicircular, visible in dorsal view; PsP1 elongated, outer face of apex pointed, inner face broadly rounded; ectophallic arc straight, anterior to median part of pseudepiphallic sclerite; ventral projections not bent, large, apex wide, curved outwards. Ectophallic fold sclerotized, longer than in D. manauara n. sp., surrounding apex of medio-posterior projection of endophallic sclerite.

Description. In addition to the characters of the genus:

Head. Occiput and vertex coloration medium brown, almost uniform, with thick setae ( Figs. 5 A–C ). Fastigium wider than long, medium brown, with double row of thick setae, below vertex level and not separated from it by line or furrow ( Figs. 5 A–C, F ). Antennal scape longer than wide, scape and pedicel yellowish brown ( Figs. 5A, B ); proximal antennomeres yellowish brown, medial and distal medium brown ( Figs. 5A, F ). Frons yellowish brown ( Fig. 5F ). In frontal view, gena medium brown ( Fig. 5F ). In lateral view, gena yellowish brown divided by incomplete dark brown stripe, with dark brown spots ( Fig. 5C ). Mandibles light to medium brown ( Fig. 5F ). Clypeus medium brown, central portion light brown; labrum greyish brown ( Fig. 5F ). Maxillary palpi elongated, joints 3–5 elongated, pilose, joint 5 longest ( Fig. 5E ); whitish, ventral half light brown ( Fig. 5E ); fifth joint whitish, apex light brown, curved, rounded ( Fig. 5E ).

Thorax. Pronotum DD longer than wide, medium brown, borders darker than central part, cephalic margin with bristles ( Figs. 5 A–C ). DD cephalic margin slightly convex, DD caudal margin sub-straight, LL ventrocephalic angle curved, ventro-caudal angle oblique ( Figs. 5 A–C ).

Legs. Legs I and II light to medium brown, not annulated, pubescent, with thick setae. Tympanum on inner face of TI. TI and TII with two ventral spurs. TII with two ventral spurs, one dorsal—the outer dorsal is absent. FIII basis inflated; outer face light to medium brown, with dark brown maculae inner face with same pattern. TIII light to medium brown, not annulated. Subapical spurs 4/4, with serrulation between and above them; inner distal subapical spur near upper apical; apical spurs 3/3, more developed on inner face; inner apical spurs: dorsal longest (iad), median slightly shorter (iam), ventral smaller (iav) (iad>iam>iav); outer apical spurs: median longest (oam), dorsal slightly shorter (oad), ventral smaller (oav) (oam>oad>oav). Basitarsus III with double row of spines.

Abdomen. Tergites slightly pubescent, without tergal glands ( Fig. 5A ); dark brown, coloration almost uniform ( Fig. 5A ). Sternites light to medium brown. Cerci medium brown. Supra anal plate light to medium brown, pubescent, not constricted medially ( Fig. 5H ); proximal margin slightly concave, distal margin straight, wide, without extended angles ( Fig. 5H ). Subgenital plate elongated, light brown, pubescent ( Fig. 5G ); proximal margin concave, median portion of distal margin almost straight ( Fig. 5G ).

Male. Male FWs short, rounded, reaching half of abdomen ( Fig. 5A ); right FW medium brown ( Figs. 5A, B ), pilose, apex light brown; without specialized veins or areas for sound production and propagation; left FW membranous, translucent, lateral field medium brown, with sparse setae ( Fig. 5D ). Male genitalia. Male genitalia longer than D. manauara n. sp., bearing a pair of genital glands within pseudepiphallic sclerite, connected to tubular pseudepiphallic arms ( Figs. 6 A–C ). Pseudepiphallus: pseudepiphallic sclerite transverse, with phallic glands connected to two dorsal pseudepiphallic arms tubular ( Figs. 6 A–C ); pseudepiphallic arms curved outwards ( Figs. 6A, B ); apex with opening duct, rounded. Rami elongated, reaching apex of ectophallic apodemes ( Fig. 6A ). Pseudepiphallic parameres (PsP) highly sclerotized ( Figs. 6 A–C ); PsP2 with two pairs of distinct projections: one elongated, upcurved, larger than in D. manauara n. sp., second small, medial, semicircular, visible in dorsal view ( Fig. 6A ); PsP1 elongated, outer face of apex pointed, inner face broadly rounded ( Figs. 6B, C ). Ectophallic invagination. Ectophallic apodemes elongated, thin ( Figs. 6A, B ); ectophallic arc straight, anterior to median part of pseudepiphallic sclerite ( Fig. 6A ); dorsal projections of ectophallic invagination absent; ventral projections large, apex wide, curved outwards ( Fig. 6B ). Ectophallic fold sclerotized, longer than in D. manauara n. sp., surrounding the apex of medio-posterior projection of endophallic sclerite ( Figs. 6A, B ). Endophallus. Endophallic sclerite large, flat ( Figs. 6A, B ); latero-posterior projections shorter than in D. manauara n. sp.; medio-posterior projection elongated ( Figs. 6A, B ). Endophallic apodeme paired, curved outwards.

Female. Unknown.

Measurements (mm). Males (n=1): HW—2.12; IOD—1.06; PL—2.1; AWP—2.12; PWP—2.49; PW—2.6; FWL—3.29; FWW—2.56; LFIII—7.6; WFIII—2.1; LTIII—7; LBt-III—2.1.

Figures

FIGURE 5. Desutterella colombiana n. gen. n. sp. General morphology. A, male habitus, dorsal; B, male head, pronotum and FW, dorsal; C, male head, pronotum and FW, lateral; D, male left FW, dorsal; E, male maxillary palpus; F, male head, frontal; G, male subgenital plate; H, male supra anal plate. Scale bar: A, 2 mm; B – H, 1 mm.

FIGURE 6. Desutterella colombiana n. gen. n. sp. Male and female genitalia. Male genitalia in dorsal (A), ventral (B) and lateral (C) views. Conventions: Arm—pseudepiphallic arm; EctAp—ectophallic apodeme; EctF—ectophallic fold; EndApendophallic apodeme; EndSc—endophallic sclerite; Gland—phallic gland; PsP 1 — pseudepiphallic paramere 1; PsP 2 — pseudepiphallic paramere 2; R—ramus. Scale bar: 1 mm.