Pseudotachycines volutus, Qin & Liu & Li, 2017

Qin, Yanyan, Liu, Xianwei & Li, Kai, 2017, A new genus and some new descriptions of the tribe Aemodogryllini (Orthoptera, Rhaphidophoridae, Aemodogryllinae; Aemodogryllini) from China, Zootaxa 4303 (4), pp. 482-490 : 486-487

Pseudotachycines volutus sp. nov.

( Figs. 13–17 )

Description. Male. Body medium sized. Vertex of head divided into conical tubercles, distinctly separated. Legs elongate and slender; fore femora about 1.3 times as long as the pronotum, beneath unarmed, internal knee lobe with a small spine, genicular lobe with 1 elongate movable spur; fore tibiae beneath with 3 external and 3 internal spurs. Mid femora with an elongate movable spur on the internal and genicular lobe, beneath unarmed; mid tibiae beneath with 2 external spurs and 1 internal spur. Hind femora beneath with 1–4 inter spines and without outer spines; hind tibiae above with 55–58 outer and inter spines respectively, arrange in groups, inner subapical spur of hind tibiae slightly longer than hind metatarsus. Hind metatarsus keeled beneath and with an apical spine above ( Fig. 13 ). Male paraproct distinctly longer than epiproct ( Fig. 14 ). Dorsolateral lobes of male genitalia sclerotized and elongate ( Figs. 15 ). Epiphallus of male genitalia strap-shaped ( Fig. 16 ).

Female. Apex of subgenital plate deeply concaved ( Fig. 17 ). Ovipositor longer than the half hind femora.

Coloration. Body darkish black, some individuals yellowish. Abdomen, antenna and face light brown. Fore tibiae and mid tibiae with dark annular stripes.

Measurements. (length in mm) Body ♂ 10.0–13.0, ♀ 11.0–12.5; pronotum ♂ 5.5–6.0, ♀ 6.0; fore femora ♂ 7.5– 8.0, ♀ 7.5–8.0; hind femora ♂ 16.5–17.5, ♀ 17.5; ovipositor 12.0.

Material examined. Holotype, 1♂, Forest park of Fushoushan , Hunan Yueyang, alt . 1079m, 2016-IX-18-26, collected by Jiang et al.; paratype, 1♂, 3♀♀, same data as holotype ; 2♂♂, Tianmu Mountain , Zhejiang, alt. 1100m, 2012. VIII.31, collected by Liu Xian-Wei et al..

Distribution. China (Hunan, Zhejiang).

Diagnosis. This species distinguishes from Pseudotachycines trapezialis sp. nov. and Pseudotachycines ovalilobatus (Gorochov, 2010) comb. nov. in the mid tibiae with 3 external spurs and 3 internal spurs beneath, dorsolateral lobes of male genitalia much longer.

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Figures

FIGURES 13 – 17. Pseudotachycines volutus sp. nov.. 13. Hind metatarsus, lateral view; 14. Abdominal apex, dorsal view; 15. Male genitalia, dorsal view; 16. Epiphallus of male genitalia; 17. Female subgenital plate, ventral view; scale bars = 1 mm.