中国腐蝇属的分类研究及纪录一新种

Taxonomic study and a new species and first record of the genus Muscina from China

目的了解中国腐蝇属(Muscina Robineau-Desvoidy,1830)的研究现状。方法采集、鉴定相关标本,查阅文献,进行分析研究。结果包括记述的长簇腐蝇,新种(Muscina longifascis Feng,sp.nov.)在内,全世界已知腐蝇属15种,其中分布于中国的有7种:2种为中国所特有,5种为跨多区分布;简述了该属鉴别特征,基本了解其生态习性,编制了中国已知种检索表。结论我国腐蝇属种类相对较少,但幅员辽阔,该项工作仍需继续进行。新种模式种藏于中国科学院上海植物生理生态研究所昆虫博物馆。

Objective To provide an overview of the research advancement in Muscina（Robineau-Desvoidy,1830）in China.Methods The relevant specimens were collected and identified in conjunction with literature review.Results In addition to the new species,Muscina longifascis（Feng,sp.nov.）,15 species of the genus Muscina are known in the world.Seven of them are distributed in China,of which 2 species are unique to China and 5 present in multiple areas.This paper outlines the identification features of this genus,presenting a basic understanding of its ecological behaviors.A key to the known species in China is also established.Conclusion The number of species of the genus Muscina is relatively small,despite the vast species distribution.Record of the species should be carried on.The type species of the new record is reserved in the Insect Museum of Shanghai Institute of Plant Physiology and Ecology.Muscina longifascis Feng,sp.nov.（Fig.l）Male：Body length 8.5-10.0 mm.This new species is similar to Muscina baoxingensis Feng,2008,but differs from the latter in：（1）abdomen black dark wholly,that for the latter one reddish-brown partly;（2）7-8th synsternite with a tufty long bristles on dorsal surface,that for the latter one without;（3）both sides on postsemipart of cerci expanding in round form in posterior view,that for the latter one costrictly;（4）upward on distal end of surstyli in lateral view,that for the latter one straightly.Female：Body length 8.0-10.0 mm; wide of frons as 0.357 time as head one; parafrontalia and ocellar triangle bright black; interfrontalia black deeply and with a pair interfrontal bristles,but individual unapparent; ocellar triangle not reaching the frontal premargin; number of 2 frontal bristles in backward and of 6 ones in inward at inner margin of parafrontalia were present,and with a row of smaller setae on outer margin of one; thorax and abdomen covered with grey prainosity thinner than these male ones; abdomen short and wide than these male; other characters same as these male of species.Holotype ♂,Mingshan（Mt.Laoeshan,1200 m）,Sichuan Prov.,China,1980-07-30,collected by Feng Yan; paratypes：5♂♂,3♀♀,same date as holotype,collected by Feng Yan and Zeng Wen-zhao,2♂♂,6♀♀,Mingshan（Lianjiang,600 m）,1981-04-14,same collector as holotype.The type specimens are kept in the entomologic museum,Institute of Plant Physiology and Ecology,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai（200032）,China.[Etymology] The specific name is derived from the Latin words ＂long＂ combined with ＂fascis＂,referring that of the dorsal surface of 7-8th synsternite of abdomen with a tufty long bristles.