Microtachycines trispinosus Qin et Li, 2020

Qin, Yan-Yan, Liu, Xian-Wei & Li, Kai, 2020, Remarks on genus Microtachycines Gorochov, 1992 (Orthoptera Rhaphidophoridae: Aemodogryllinae) from China, Zootaxa 4801 (3), pp. 570-576 : 575-576

Microtachycines trispinosus Qin et Li sp. nov.

( Figs. 9–16 , 20)

Description. Size of body medium. Head with fastigium of vertex divided into two conical tubercles, well-divided and long ( Figs. 9–10 ). Legs long and slender. Fore femur about 1.5 times as long as the pronotum, beneath unarmed, the internal genicular lobe with 1 small spine, external genicular lobe with 1 movable spine; fore tibiae beneath with 1 internal and 1 external spine, between the apical paired spines with 1 small spine. Mid femur with 1 long movable spine on the internal and external genicular lobe separately; mid tibiae beneath with 1 external and 1 internal spine, between the apical paired spines with 1 small spine. Hind femur beneath with 7~10 internal spines, without external spine; hind tibiae above with 42~47 internal and external spines on each side, arrange in groups, 1 group comprise 2–5 spines, the longest apical spine situated in internal side of hind tibiae shorter than the apex of hind metatarsus; hind metatarsus above with 1 apical spine and keeled beneath. Epiproct nearly rectangular, long about 2.0 times as the wide, both middle part of lateral margin and hind margin concave. Dorsolateral lobes of male genitalia expanded sclerotized, divided into 3 large spine-shaped projections; pseudosternite small, middle part of lateral margin convex.

FIGURE 20. Microtachycines trispinosus Qin et Li sp. nov.. 20. Male in habitat, lateral and posterior view (photographed in Sanqingshan of Jiangxi province).

Female. Unknown.

Measurements (in mm). Body ♂ 11.0–12.0; pronotum ♂ 5.5–6.0; fore femur ♂ 8.5–9.0; hind femur ♂ 15.0– 17.0; hind tibiae ♂ 17.0–19.0.

Coloration. Whole body with black and irregular stripes. Frons with 4 conspicuous longitudinal bands. Epiproct of male black.

Material examined. Holotype, ♂, China, Jiangxi, Sanqingshan, Tiyunling-Xianrenzhilu , alt. 1240~ 1400m, 27-VII-2019, leg. Liu Xian-Wei, Wang Han-Qiang & Qin Yan-Yan; paratype, 1♂, China, Jiangxi, Sanqingshan, Xihai’an-Sanqingfudi-Yangguanghai’an, alt. 1500m, 27-VII-2019, leg. Liu Xian-Wei, Wang Han-Qiang & Qin Yan-Yan.

Distribution. China (Jiangxi).

Discussion. This new species is similar to Microtachycines elongatus Qin Liu & Li., 2017 , its distinguished characters from the latter species are that: male epiproct rather large, lateral margins concave; spines on hind tibiae less; apex of dorsolateral lobes of male genitalia divided into 3 large spines, pseudosternite with lateral margins convex and upper apex convex.

Etymology. This new species is named after shape of dorsolateral lobes of male genitalia, Latin words “tri” (three) and “spina” (spine).

Figures

FIGURES 9–16. Microtachycines trispinosus Qin et Li sp. nov.. 9. Head, frontal view; 10. Fastigium of vertex, dorsal view; 11. Spine in internal genicular lobe of fore femur, ventral view; 12. Apical paired spines of fore tibiae with a median spine, ventral view; 13. Apical paired spines of mid tibiae with a median spine, ventral view; 14. Abdominal apex of male, dorsal view; 15. Hind tibiae, lateral view; 16. Male genitalia, dorsal view.