中国疾蟋螽属二新种记述(直翅目:沙螽科:蟋螽亚科)

Two New Species of the Genus Apotrechus (Orthoptera: Stenopelmatidae: Gryllacrinae)

记述了中国疾蟋螽属2新种,即指突疾蟋螽Apotrechus digitatus Liu et Bi,sp.nov.和近似疾蟋螽Apotrechus fallax Liu et Bi,sp.nov.。模式标本保存在中国科学院上海昆虫博物馆。

Two new species of the genus Apotrechus Brunner-Wattenwyl, 1888 from China are described, namely A. digitatus sp. nov. and A. fallax sp. nov. from Guizhou. The type specimens are deposited in the SEM （Shanghai Entomological Museum, CAS）. 1. Apotrechus digitatus Liu et Bi, sp. nov. （Figs. 1-5） This new species is closely related to Apotrechus nigrigeniculatus Liu et Yin, 2002. But differs in the fore and mid femora without black apical part, subgenital plate of male produced backwards into two long, finger-like processes （Fig. 4）. Measurements. Body： ♂15.0 mm, ♀ 19.0 mm; pronotum： 34.0 mm, ♀4.5 mm; hind femora： ♂ ♀ 9.0 mm; ovipositor： 5.5 mm. Holotype： ♂, Leigong Mountain, Guizhou Province, 1 620-2 178 m, 02-Ⅷ- 2005, collected by YAN Kai, GE De-yan; Paratype： 1 ♀, same data as holotype. 2. Apotrechusfallax Liu et Bi, sp. nov. （Figs. 6-10） This new species is very similar to A. nigrigeniculatus Liu et Yin, 2002, but differs in the face with 3 short blackish longitudinal stripes, 10th abdominal tergite of male shallowly excised at apex （Fig. 8） and subgenital plate of female with rounded hind margin （Fig. 10）. Measurements. Body： ♂13.0 mm, ♀18.0 mm;pronotum： ♂ ♀3.8 mm; hind femora： ♂ ♀ 8.0 mm; ovipositor： 5.5 mm. Holotype： ♂, Leigong Mountain, Guizhou Province, 1 620-2 178 m, 02-Ⅷ- 2005, collected by XU Pian; Paratype： 1 ♀, Leigong Mountain, Guizhou Province, 1 000-1 100 m, 02-03-Ⅵ-2005, collected by ZHANG Zheng-guang.