Pseudolebinthus gorochovi Robillard, 2018

Jaiswara, Ranjana, Dong, Jiajia & Robillard, Tony, 2018, Revision of the genus Pseudolebinthus (Orthoptera, Gryllidae, Eneopterinae) with the description of a new species from Southeast Africa, Zootaxa 4521 (2), pp. 265-274 : 269-270

Pseudolebinthus gorochovi Robillard sp. nov.

( Figs 1 A–D; 2A–C; 3A–B; 4A–C; 5A; 6A–E; Table 1)

Pseudolebinthus sp.— Vicente et al. 2017: 2203 (historical biogeography).

Material examined. Holotype. MALAWI: ♂, N. Malawi, 100 km N. Mzuzu, Uzumara Mt. 10°52’18”S 34°07’45”E, 1930 m, 21–22.xii.2010, A. Sochivho leg, molecular sample X17 (ZIN).

Allotype. TANZANIA: ♀, Tanganyika-Terr., Matengo-Hochland wsw. v. Songea, Ugano 15[00]– 1700 m [Mbinga], 20–30.xi. [19]35, Zerny, identified Lebinthus zernyi by L. Chopard ( NHMW).

Paratype. MALAWI: 5♂, same locality as holotype, 2-4.x.2018, T. Robillard, K. Salazar, R.J. Murphy ( MNHN) . TANZANIA: 1♀, same information as allotype (MNHN-EO-ENSIF4389) .

Type locality. Malawi, Uzumara Mount, 100 km N. Mzuzu, 10°52’18”S 34°07’45”E, 1930 m .

Distribution. Northern Malawi, Western Tanzania.

Life history traits and calling song. Unknown.

Etymology. The species is dedicated to Dr. Andrej Gorochov.

Diagnosis. Species close to P. whellani , from which it differs by contrasted coloration, FIII external face bicolor, male venation and genitalia.

Male. FW dorsal field with faint transverse veins; cell c1 wide; c2 square, twice wider than c1, prolonging shape of mirror (c1 and c2 of similar width and smaller in P. whellani ). Sc with two projections at one third of its length and near apex (three in P. africanus , four in P. whellani ). Male genitalia with very short pseudepiphallic lophi, twisted ventro-apically as in P. africanus ; their apex not bilobate ( Fig. 5A ), as in P. africanus (apex bilobate in P. whellani ).

Description. Species of average size for the genus, coloration contrasted, mostly orange brown with dark brown, black and yellow patterns ( Fig. 1 A–D). Eyes large, lateral, occupying almost half of head height in lateral view ( Fig. 2A & C ); dorsal margin of eyes with small ommatidia wide. Vertex with four wide longitudinal dark brown bands fused on dorsum (bands visible basally only); area posterior to eyes yellow, without brown bands. Fastigium as long as wide ( Fig. 2B ), slightly thinner apically than in P. africanus (as in P. whellani ), dark brown with a yellow transverse stripe apically. Median ocellus surrounded by a black mark posteriorly. Face almost homogenously brown with faint pale spots; frons with a yellow transverse band below median ocellus, underlined by two back spots (forming a black transverse band in female allotype). Mouthparts yellow, mottled with dark brown; maxillary palpi yellow with dark rings. Lateral part of head dark brown with a median yellow spot; posterior margin of head and area below eye yellow. Scape yellow brown with black patterns on facial part. Antennae with first article black, remainder orange brown. Pronotum disc mostly dark brown, with a darker spot near posterior margin; lateral lobes black with silver setae, with a yellow spot on ventro-anterior corner; posterior corner yellow mottled with black. Fore and median legs mostly yellow brown; apex of tibiae and tarsomeres black. FIII external face bicolor, its dorsal half dark brown, its ventral half yellow.

Male. FWs brown, with dark brown veins ( Fig. 3A ). 1A angle forming a wide curve. CuP visible in anterior region of harp. Harp very wide, with two characteristic black swollen oblique veins. Mirror as in P. whellani , well differentiated but not rounded, wider than long, crossed by incomplete accessory veins. Cell c1 wide basally, thinner apically; c2 large and square, twice wider than c1, prolonging shape of mirror. Chord cells straight. Apical field with faint transverse veins. M/R area and veins whitish. R/Sc area whitish dorsally (including R), black ventrally (including Sc). Sc with two projections at one third of its length. Lateral field with five longitudinal veins ventral to Sc.

Male genitalia ( Fig. 4 A–C). Pseudephiphallic sclerite wider than long (not including rami); pseudepiphallic lophi very short ( Fig. 5A ), divergent basally and slightly convergent apically, their median part twisted ventroapically; apex with a very small dorsal expansion. Pseudepiphallic parameres typical of the genus, its posterior lobes short. Ectophallic apodemes large and lamellate. Endophallic sclerite with a small median area.

Female. FWs with five strong longitudinal veins ( Fig. 3B ), the median one whitish. Ovipositor as long as FIII.

Measurements (in mm). See Table 1.

Legends: BL, body length in dorsal view; FIIIL, length of FIII; FIIIW, width of FIII; TIIIL, length of TIII; FWL, forewing length; FWW, forewing width (at the level of maximal width at about 1/3 of FWL); Ias, inner spines on TIII dorsal side above the spurs; Ibs, inner spines on TIII dorsal side between the spurs; Oas, outer spines on TIII dorsal side above the spurs; Obs, outer spines on TIII dorsal side between the spurs; OL, ovipositor length; PronL, pronotum length; PronW, pronotum width; TaIIIs, spines of third hind tarsomere, not including the apical spines: Ids, inner dorsal spines; Ods, outer dorsal spines; Ols, outer spines on lateral side of TaIII.

Figures

FIGURE 1. (A–D) Pseudolebinthus gorochovi sp. nov.: male in dorsal (A) and lateral (B) views, female in dorsal (C) and lateral (D) views. Scale bar: 5 mm.

FIGURE 2. Head in dorsal (left), facial (middle) and lateral views (right): (A–C) Pseudolebinthus gorochovi sp. nov. (D–F) Pseudolebinthus whellani; Scale bar: 1 mm.

FIGURE 3. Pseudolebinthus gorochovi sp. nov. forewings in dorsal view: (A) male; (B) female. Scale bar: 1mm.

FIGURE 4. Male genitalia of Pseudolebinthus gorochovi sp. nov. in dorsal (A), ventral (B) and (C) lateral views.

FIGURE 5. Right pseudepiphallic lophi of male genitalia in dorsal view: (A) Pseudolebinthus gorochovi sp. nov.; (B) Pseudolebinthus whellani; (C) Pseudolebinthus africanus. Scale bar: 1 mm.