Three new species and a new record of the Anthomyiidae from Sichuan,China(Diptera: Muscoidea)

In this paper,three new species of Anthomyiidae,Hydrophoria nigrinitida Feng,sp.nov.,H.robustisurstylus Feng,sp.nov.and Pegomya nigripraepeda Feng sp.nov.are described.All the type specimens are preserved in the Institute of Plant Physiology Ecology,Shanhai Institute for Biological Sciences,Chinese Academy of Sciences,Shanghai,China.At the same time a new record species,Pegomya pulchripes(Loew,1857) is noted.1 Hydrophoria nigrinitida Feng,sp.nov.(Fig.1)Male: Body length 5.0 mm,black-bright.This new species is similar to H.montana Suwa,1970,but differs from the latter in: The squamae whiteish,that for the latter brownish;aristae plumose which longest hairs slightly beyonded to the width of third antennal segment,that for the latter as 2.0 times as one;fore tibia without anterodorsal bristle,that for the latter with it;hind tibia without posterodorsal bristle,that for the latter with two ones;male surstyli slightly backward curved on apical part in lateral view,that for the latter is straightly;pregoniter spindle-like,that for the latter long cone-like.Femal: unknown.Holotype ♂: Yingjing(Paocaowan,2400 m;29°58′N,102°50′E),Sichuan Province,China.1990-05-31,Collected by Feng Yan.2 Hydrophoria robustisurstylus Feng,sp.nov.(Fig.2)Male: Body length 6.0-7.5 mm,black-dark.This new species is similar to H.crassiforceps Qian et Fan,1981,but differs from the latter in: The frons narrower than the width of anterior ocellus,that for the latter as(2.0) times as one;Posthumeral bristles 1∶1,that for the latter 1∶0;hind tibia without posteroventral bristle,that for the latuer with it;6th tergite with posterior marginal bristles,that for the latter without one;lateral lobe of 5th sternite long cone-like in profile,that for the latter long and narrow;surstyli of male with a process in spine-like on subapical part at posterior margin in lateral view,that for the latter without it.Female: unknown.Holotype ♂: Ya′an(Mt.Zhougongshan,1300 m;29°58′N,102°59′E),Sichuan Province,China.1989-10-21,collected by Feng Yan.Paratypes: 1 ♂,1985-08-28;1♂, 1987-06-28;3♂♂,1987-08-15;1♂,1988-07-21;2♂♂,1988-08-26;7♂♂,1989-06-02,the same collector and locality as holotype.3 Pegomya nigripraepeda Feng,sp.nov.(Fig.3)Male: Body length 6.0 mm,black-dark;legs partly yellow.This new species is belonging to Pegomya phyllostachys-group and is similar to Pegomya phyllostachys Fan,1964,but differs from the latter in: The posthumeral bristles 1∶1,that for the latter 2∶1;sternopleura bristles 1∶3,that for the latter 2∶(3-4);fore tibia without anterodorsal bristle,that for the latter with it;surstyli of male both of inner and outer length of branches on apical part equally in each other,that for the latter inner one shortly markedly in posterior view,it with a long spine on postmarginal of basal part,that for the latter without one in lateral view.Female: unknown.Holotype ♂: Mt.Emeishan(Wanfoding,3099 m;29°59′N,102°52′E),Sichuan Province,China.1984-06-22,collected by Feng Yan.4 Pegomya pulchripes(Loew,1857),new record(Fig.4)Zeitschr.ges.Naturwiss,1857,10: 104(Anthomyia)The materials here observed of this known species of Pegomya pulchripes(Loew,1857) were collected from Mt.Erlangshan on western Sichuan,China.It was originally reported from Europa by Loew H.,1857,some notes on characters and bionomics are given in the paper.