喜马拉雅山地区痂蝗属二新种(直翅目,斑翅蝗科)

TWO NEW SPECIES OF THE GENUS BRYODEMA FIEBER(ORTHOPTERA, OEDIPODIDAE) FROM HIMALAYA REGION

记述采自西藏喜马拉雅山地区痂蝗属2新种,伪透翅痂蝗Bryodema pseudohyalinala sp.nov.及康马痂蝗Bryodema kangmarensis sp.nov.。附有中国痂蝗属分种检索表。新种的模式标本保存于陕西师范大学动物研究所昆虫标本室。

This paper reports two new species of the genus Bryodema from Xizang, ie. Bryodema pseudohyalinala sp. nov. and Bryodema kangmarensis sp. nov. A key to the Chinese species of the genus is given. The type specimens are deposited in the Institute of Zoology, Shaanxi Normal University. 1 Bryodema pseudohyalinala sp. nov. （Figs 1-4） This new species is allied to Bryodema hyalinala Zheng et Zhang, 1981 and Bryodema nigristria Zheng et Chen, 2001. It differs from the latter two species in： 1） the second anal lobe of male hindwing wide, about 1.56 times wider than following anal lobe; 2） 2A1 and 2A2 veins straight; 3） tegmina of female surpassing the top of hind femur; 4） hindwing slightly shorter than tegmina; 5） width of interspace of mesosternal lobes 2.3 times its length; 6） hind tibia orange brown. Length of body： ♂ 32 mm, ♀38-39 mm. Length of pronotum：♂ 13 mm, ♀10-12 mm. Length of tegmina：♂ 35 mm, ♀30-31 mm. Length of hind femur：♂ 15 mm,♀19-20 mm. Holotype ♂, Xizang,Gangba （28°11′N, 88°12′E; alt. 4 514 m）, 1 Aug. 2011, collected by ZHU Xi-Chao. Paratypes 2♀♀, same data as holotype. Etymology. The specific name is derived from the Greece ＂pseudo＂ and ＂hyalinala＂. 2 Bryodema kangmarensis sp. nov. （Figs 5-6） This new species is allied to Bryodema nigrofascia Zhang et al., 2006, but differs in： 1） hindwing with a narrow dark traverse fascia; 2） 2A1 vein of second anal lobe not thickened in basal half; 3） without black speckles in apices of hind wing. Length of body： ♂ 28 mm, ♀35 mm. Length of pronotum：♂ 9 mm, ♀10 mm. Length of tegmina：♂ 32 mm, ♀ 28 mm. Length of hind femur：♂ 13 mm, ♀15 mm. Holotype ♂, Xizang, Kangmar （28°14′N, 89°23′E; alt. 4 454 m）, 31 July 2011, collected by ZHU Xi-Chao. Paratype 1♀, same data as holotype. Etymology. The specific name is derived from the type locality ＂Kangmar＂.