Tarbinskiellus sororius Wang, Zhang & Liu, 2020

Wang, Ping, Zhang, Dong-Xiao, Yuan, Li-Lan & Liu, Hao-Yu, 2020, A contribution to taxonomy of the superfamily Grylloidea Laicharting from Yunnan, China (Orthoptera: Grylloidea), Zootaxa 4729 (4), pp. 575-581 : 576-577

Tarbinskiellus sororius Wang, Zhang & Liu sp. nov.

( Figs. 1–2 , 8–10 )

Type material. Holotype: ♂, CHINA, Yunnan, Lvchun, Kucong, Luoshi , 21.VI.2017, leg. Dongxiao Zhang. Para- types: 2♂ 2♀, 20.VI.2017, other same data as the holotype; 2♂, CHINA, Yunnan, Lvchun, Yakou, 25.VI.2017, leg. Dongxiao Zhang.

Diagnosis. This new species is similar to Tarbinskiellus portentosus (Lichtenstein, 1796) , but differs from the latter by the ectoparameres of genitalia obviously broad; the shape of posterior margin of epiphallus different in middle area, and lateral lobes curved non inwards in dorsal view.

Description. Male ( Fig. 1 ). Body larger. Head strong, occiput slightly convex; frontal rostrum wider, about 2.3 times as wide as the scapus; frontoclypeal sulcus flat; apical joint of maxillary palpi longer than the third, rodlike; last joint of labial palpi longest, as long as 1 st and 2 nd joint combined; eyes small and protruding, median ocellus crescent shape, lateral ocelli rounded, nearly parallel. Pronotum obviously transverse, anterior margin obviously concave, and posterior margin slightly concave. Tegmina distinctly extending to apex of abdomen, dorsal field with 2 oblique veins, mirror small, slightly longer than broad, about 1.2 times as long as wide, diagonal vein straight; lateral field with 10 subcostal veinlets. Hind wings distinctly longer than tegmina, the apex resembles a tail in stationary. Fore tibiae with two tympana, external larger than internal, external tympanum oblong, internal tympanum oval. Legs short and stout. Hind tibiae with 4 pairs of dorsal spines, apex separately with 3 spurs, lower spur smallest.

Subgenital plate nearly conical. Supra anal plate trapezoid, slightly narrowed and rounded posteriorly. Genitalia ( Figs. 8–10 ): epiphallus distinctly transverse, and posterior margin clearly concave in middle, and lateral lobes curved non inwards in dorsal view; ectoparameres obviously broad, reaching to the middle of lateral lobes.

Female ( Fig. 2 ). Body very similar to that of male. Tegmina with 10 longitudinal veins in dorsal field, lateral field with 8 subcostal veinlets. Ovipositor shorter, not reaching to apex of hind wings.

Coloration. Body dark brown. Pronotum dark brown and almost black, with a pair of dark red eyelike markings in dorsal field, and lateral field light brown. The lateral field lighter than the dorsal field of the tegmina.

Measurements (mm). Male: body length 31.0–33.0, pronotum 7.0–8.0, tegmen 27.0–28.0, hind femur 21.0– 22.0. Female: body length 29.0–30.0, pronotum 7.0–7.5, tegmen 27.0–30.0, hind femur 20.0–21.0, ovipositor 6.0– 7.0.

Distribution. China (Yunnan).

Etymology. The specific name is derived from Latin soror (sisters), referring to this species is similar to T. portentosus (Lichtenstein, 1796) .

Figures

FIGURES 1–7. Habitus of Grylloidea spp. 1–2. Tarbinskiellus sororius sp. nov.; 3. Ornebius yunnanensis sp. nov.; 4–5. Homonemobius curifolis sp. nov.; 6–7. Pteronemobius (Pteronemobius) truncates sp. nov.; 1, 3, 4, 6. male; 2, 5, 7. female.

FIGURES 8–12. Male genitalia and supra anal plate. 8–10. Tarbinskiellus sororius sp. nov.; 11–12. Ornebius yunnanensis sp. nov. Genitalia: 8. dorsal view, 9. ventral view, 10–11. lateral view. 12. Supra anal plate, dorsal view.