Tachycines (Gymnaeta) pallidus, 2019

Qin, Yanyan, Liu, Xianwei & Li, Kai, 2019, Review of the subgenus Tachycines (Gymnaeta) Adelung, 1902 (Orthoptera, Rhaphidophoridae, Aemodogryllinae, Aemodogryllini), Zootaxa 4560 (2), pp. 273-310 : 300-301

Tachycines (Gymnaeta) pallidus sp. nov.

( Figs. 88–91 )

Description. Male. Body medium sized. Vertex of head divided into conical tubercles ( Fig. 88 ). Legs elongate and slender; fore femur about 2.0 times longer than the pronotum, ventrally unarmed, internal genicular lobe without spine, external genicular lobe with 1 elongate movable spur; fore tibiae beneath with 2 external spurs and 1 internal spur. Mid femur with an elongate movable spur on each genicular lobe, ventrally unarmed; mid tibiae beneath with 1 external spur and 1 internal spur. Hind femur without spines ventrally; hind tibiae above at each side with 33–40 spines respectively, arranged in groups. Supra internal spur of hind tibiae not exceeding ventral apex of hind metatarsus. Hind metatarsus keeled ventrally ( Fig. 89 ). Male genitalia as Fig. 90 .

Female. Subgenital plate nearly triangular and apex slightly blunt ( Fig. 91 ). Ovipositor longer than half the length of hind femur.

Coloration. Body yellowish. Middle portion of pronotum with white longitudinal band. Abdominal tergite greyish. Fore and middle legs with brown annular stripes.

Measurements. (length in mm) Body ♂ 11.0, ♀ 9.0; pronotum ♂ 5.0, ♀ 5.5; fore femur ♂ 10.0, ♀ 9.5; hind femur ♂ 20.0, ♀ 19.5; ovipositor 13.0.

Specimens studied. Holotype, 1♂, Lushui, Fenshuiling , Yunnan, alt. 2250m, 2010-VII-7, collected by Bi Wen-Xuan; paratype, 1♀, Jizushan, Yunnan, alt. 2010m, 2010-X-20, collected by Guo Jiang-Li.

Distribution. China (Yunnan).

Diagnosis. This species is similar to T. (G.) dianxicus sp. nov., but differs from the latter by both lateral margins of the male epiphallus running almost parallel ( Fig. 90 ); T. (G.) dianxicus sp. nov. with both lateral margins of the male epiphallus running not parallel.

Etymology. The specific epithet refers to the pallid colour of the species.

Figures

FIGURES 88–91. Tachycines (Gymnaeta) pallidus sp. nov.. 88. head, dorsal view; 89. tarsus of hind leg, lateral view; 90. male genitalia, dorsal view; 91. female subgenital plate, ventral view. (scale=1mm)