中国凸额水蝇属一新种及两新纪录种记述(双翅目,水蝇科)

A NEW SPECIES AND TWO NEW RECORD SPECIES OF THE GENUS PSILOPA FROM CHINA(DIPTERA,EPHYDRIDAE)

记述了中国水蝇科Ephydridae凸额水蝇属Psilopa Fallén1新种及2新纪录种,王氏凸额水蝇Psilopa wangi sp.nov.,褐缘凸额水蝇Psilopa marginella(Fallén,1823)和后斑凸额水蝇Psilopa leucostoma(Meigen,1830),并讨论了它们与近似种的区别。模式标本保存在中国农业大学昆虫博物馆。

In the paper,a new species and two new record species of the genus Psilopa Fallén（Diptera,Ephydridae） are described：P.wangi sp.nov.,P.marginella（Fallén,1823） and P.leucostoma（M eigen,1830）.P.marginella and P.leucostoma distribute in Helan M ountain of Inner M ongolia in China.T he types are deposited in the Entomological M useum of China Agricultural University,Beijing.Psilopa wangi sp.nov.（Figs 1-5） T his new species is allied to P.marginella（Fallén,1823）,but differs from the latter in the following points：1） face bare without microtomentum;2）antennae orange,but first lagellomere brownish black dorsally;3） wing hyaline except middle and basal portions of cell R2 ＋3,cell R4 ＋5 and cell Cu brownish yellow;4） foreleg black;mid and hind coxae,trochanter and femora black,tibiae and tarsomeres 1 4 yellow,tarsomere 5 dark brown.♂.Body length2.04mm,wing length2.25mm.Holotype ♂,Liaoning,Huanren,Laotu Dingzi Nature Reserve（41.32°N,124.87°E;alt.1058 m）,24 July 2009,collected by W ANG Jun-Chao（CAU）.Etymology.T he specific name is derived from the collector’s last name＂W ang＂.