四川裸蠓二新种（双翅目：蠓科）

本文描述了１９８１年发现了于四川省的蠓科裸蠓属二新种。分别命名为漫游裸蠓Ａｔｒｉｃｈｏｐｏｇｏｎ（Ａ．）ｐｌａｎｅｔｕｓ（采自泸定县）和四梗裸蠓Ａ．（Ｐｓ．）ｔｅｔｒａｍｉｓｃｈｕｓ（采自南川县）。二新种的模式标本均收藏于北京医学昆虫标本馆。

TWO NEW SPECIES OF ATRICHOPOGON FROM SICHUAN(DIPTERA:CERATOPOGONIDAE)

In this paper two new species of Atrichopogon from Sichuan Province are described.1. Atrichopogon(Atrichopogon)Planetus Yu et Liu sp.n. Male(Fig. 1) Eyes pubescent.Wing length 1.54mm. Macrotrichia absent.AR 1.23,TR 2. 52 for hindleg. Genitalia as in fig,1 hyp.This midge is noticeably different from all the known members of Atrichopogo,jacobsoni group in thegenitalia. Holotype,collected from Luding County,Sichuan Province, July 7, 1981.2. Atrichopogon(Psilokempia) tetramischus Yu et Liu sp.n. Female(Fig.2 ) Eyes pubescent;Wing length 1.03mm. Macrotrichia absent.AR 1.48,TR 2.40 forhind leg. Spermatheca one,oval with short neck.Abdomen armatures differ from that of A. (P. )pallidicil-lus in having four apical branches on ventral side of the seventh sternum.Holotype,collected from Nanchuan County,Sichuan Province,June 13,1981. All type specimens are deposited in the Medical Entomology Collected Gallery, 20 Dongda Jie ,Fengtai,Beijing 100071,China.