四川省蚱总科二新种记述(直翅目)

TWO NEW SPECIES OF TETRIGOIDEA FROM SICHUAN PROVINCE (ORTHOPTERA),CHINA

记述采自四川省雅安地区蚱总科昆虫,发现2新种,四川佯鳄蚱Paragavialidium sichuanensis sp.nov.及拟短背蚱Tetrix parabrachynota sp.nov.模式标本保存于河北大学博物馆。

In the present paper,two new species of Tetrigoidea are described.Type specimens are kept in the Museum of Hebei University.1 Paragavialidium sichuanensis sp.nov.（Figs.1-3）This new species is allied to P.hainanensis（Zheng et Liang,1985）,but differs in：1）the whole length of pronotum about 2.5 times the length of hind pronotal process which is beyond the top of hind femur;2）upper keel of midfemur with two large teeth;3）the first segment of posterior tarsi not expanded;4）hind tibia black,with two light rings in the middle.♀.Length of body 16.5mm,length of pronotum 19.5mm,length of hind femur 8.5mm.Holotype ♀,Sichuan,Ya＇an（103°6＇E,29°9＇N）,7 Sep.2005,collected by WANG Hai-Jian.Etymology.The specific name is derived from the type locality-Sichuan Province.2 Tetrix parabrachynota sp.nov.（Figs.4-6）This new species is allied to T.brachynota Zheng et Deng,2006,but differs in：1）vertex slightly protruding before anterior margin of eyes;2）in profile,upper margin of pronotum arec before shoulders,protruding between shoulders,and then flat behind;3）pronotal process only reaching to the middle of hind femur;4）top of pronotal flat,slightly concave in the middle;5）hind wing extending beyond the top of pronotal process;6）lower margin of midfemur straight;7）width of midfemur as wide as elytra;8）hind margin of subgenital plate with a triangular process in the middle;9）length of upper valvue of ovipositor 4 times its width.♀.Length of body 10mm,length of pronotum 6mm,length of hind femur 10mm.Holotype ♀,Sichuan,Ya＇an（103°6＇E,29°9＇N）,7 Sep.2005,collected by WANG Hai-Jian.Etymology.The specific name is derived from the Latin words para＋brachynota.