四川大邑县西岭雪山泉种蝇属二新种描述

Two New Species of Pegohylemyia tibetana Group from Xiling Snow Mountain of Dayi County in Sichuan,China(Diptera , Anthomyiidae)

青藏泉种蝇ＰｅｇｏｈｙｌｅｍｙｉａｔｉｂｅｔａｎａＳｃｈｎａｂｌ，１９１１群，已报道１１种，现又增加２种：（１）阔叶泉种蝇Ｐｅｇｏｈｙｌｅｍｙｉａｅｕｒｙｉｓｕｒｓｔｙｌａｓｐ．ｎｏｖ．的地尾叶宽大，肛尾叶末端尖且较侧尾叶短，后阳基侧突腹缘具齿状突，（２）亮尾泉种蝇Ｐｅｔｇｏｈｙｌｅｍｙｉａｆｕｌｇｉｃａｕｄａｓｐ．ｎｏｖ．肛尾叶末端圆而亮黑，几乎与侧尾叶等长，后阳基侧突腹缘具微波突。

The new s pecies of pegohylemyia ti-betana group collecte from Xiling snow Mt.and holo-types are kept in author′s labaratory.1. Pegohylemyia euryisurstyla sp.nov.(figs 1-4)♂:Body length 7 mm. Basing on the cercal plateshorter than surstyli and the foemer with 2 pairs oflong bristles, subapically, it is related toPegohylemyia spinistetnata Suwa, 1974. However,itdifferentiate from the latter in having a sharp apex ofthe cetcal plate , expanding part of the cercal platelonaer than width itself , having a dentiform on theventra1 side of the postgonite. Holotype ♂,Xiling snow Mt. of Dayi county,4-Ⅳ-1994,coll,Li Ling.2.Pegohylemiayia fulgicauda sp.now .figs 5-8 ♂: Body length 6mm,It is similar to Pegohyle-myia zhuoniensis Jin, 1983 but is differentiated fromlatter by the cercal plate with a round apex,by thepostgonite weakly wavy on the ventral side and by thesurstyli shorter and blacker than relative species.Holotype ♂,paratypts 23♂♂,localitv and dateas above,coll,Liu Yang and Li Ling.