中国四川西部厕蝇属2新种记述(双翅目:厕蝇科)

Two New Species of the Genus Fannia from Western Sichuan,China (Diptera:Fanniidae)

记述采自中国四川西部厕蝇科厕蝇属FanniaR .-D .,1830两新种 :许氏厕蝇Fanniaxuisp .nov和羽胫厕蝇Fanniapterylitibiasp .nov .。模式标本存放于中国科学院上海昆虫研究所昆虫标本馆。

This paper describes two new species of Fannia Robineau-Desvoidy,1830 from western region of Sichuan province during the years 1979-2000.One of them is named after Prof.Xu Rong-man.The type specimens are preserved in the Shanghai Institute of Entomology,Chinese Academy of Sciences,Shanghai,China. 1 Fannia xui sp.nov.(Figs.1-5) ♂:Body length 5.5 mm-6.0 mm.This new species is similar to Fannia huaxiia Feng et Xue,2000,but differs from the latter in following features:Eyes with covered hairs;femora dark black;hind tibia with posterodorsal bristle;apical part of submid-branch of cerci costricted suddenly. ♀:Unknown. Holotype ♂,Mt.Erlang (Forest Farm,2 760 m;29°54′N,102°08′E),Sichuan Prov.,17 May 1989,collected by Feng Yan;Paratypes 11♂♂,same locality,collector and date as holotype. 2 Fannia pterylitibia sp.nov.(Figs.6-9) ♂:Body length 5.0 mm.This new species is similar to Fannia submonilis Ma,1981,but differs from the latter in following features:Fore tibia without tuft of hair in ventral surface;Coxa of hind leg bare on posterior surface;Pra is 2 in number;hind tibia with av 13-14 on whole length. ♀:Unknown. Holotype ♂,Kangding (Mt.Paoma,2 850 m;30°07′N,101°58′E),Sichuan Prov.,20 July 1982,collected by Feng Yan.