Tachycines (Gymnaeta) lushuicus, 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 : 289-290

Tachycines (Gymnaeta) lushuicus sp. nov.

( Figs. 48–51 )

Description. Male. Body small sized. Vertex of head divided with conical tubercles ( Fig. 48 ). Legs elongate and slender; fore femur about 2.2 times longer than the pronotum, ventrally unarmed, internal knee lobe with a small 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 the internal and external genicular lobe, ventrally unarmed; mid tibiae beneath with 1 external and 1 internal spur. Hind femur without spines ventrally; hind tibiae above at each side with 53–61 spines respectively, arranged in groups. Supra internal spur of hind tibiae not exceeding ventral apex of hind metatarsus. Hind metatarsus keeled ventrally. Male genitalia as Figs. 49–50 .

Female. Subgenital plate nearly triangular and apex blunt ( Fig. 51 ). Ovipositor slightly shorter than half the length of hind femur.

Coloration. Body brown. Frons with 2–4 dark longitudinal bands ( Fig. 48 ). Abdominal tergite with distinct stripes. Hind femur with dark brown stripes.

Measurements. (length in mm) Body ♂ 10.0–11.0, ♀ 10.0; pronotum ♂ 4.5–5.0, ♀ 4.5; fore femur ♂ 9.5–11.0, ♀ 9.0; hind femur ♂ 18.0, ♀ 17.5; ovipositor 8.5.

Specimens studied. Holotype, 1♂, Pianma Zhen, Lushui , Yunnan, alt. 2300m, 2010-VI-24 ~25, collected by Bi Wen-Xuan; paratypes, 1♀, smae data as holotype; 1♂, Lushui, Pianma Zhen, Yunnan, alt. 2300m, 2010-VII- 6 ~7, collected by Bi Wen-Xuan.

Distribution. China (Yunnan).

Diagnosis. This species is rather similar to T. (G.) parvus sp. nov. in male genitalia, but differs from the latter in that: upper notch of epiphallus rather small and hind metatarsus keeled beneath.

Etymology. The specific epithet refers to the type locality.

Figures

FIGURES 48–51. Tachycines (Gymnaeta) lushuicus sp. nov.. 48. head, frontal view; vertex, dorsal view; 49. male genitalia, dorsal view; 50. male genitalia, ventral view; 51. female subgenital plate, ventral view. (scale=1mm)