中国沟额叶蜂属(膜翅目,叶蜂科)二新种暨亚洲种类检索表

记述中国沟额叶蜂属2新种:廖氏沟额叶蜂Corrugia liaoae Wei et Liu,sp.nov.和弯刺沟额叶蜂Corrugia curvatispina Wei et Xiao,sp.nov.。编制了沟额叶蜂属亚洲已知种类分种检索表。新种模式标本保存于中南林业科技大学昆虫模式标本室以及中国农业大学昆虫标本馆。

TWO NEW SPECIES OF THE GENUS CORRUGIA MALAISE ( HYMENOPTERA, TENTHREDINIDAE ) FROM CHINA WITH A KEY TO KNOWN ASIAN SPECIES OF THE GENUS

Two new species of Corrugia Malaise(Hymenoptera,Tenthredinidae) Tenthredinidae from Guangxi,China are described.A key to Asian species of the genus is provided.T he type specimens are kept in the Insect Collection of Central South University of Forestry and T echnology,Changsha,Hunan Province,China(CSCS) and the Insect Collection of China Agricultural University,Beijing,China(CAUB).1 Corrugia liaoae Wei et Liu,sp.nov.(Figs 1-4) Body length of female 5 mm,male unknown.T his new species is similar to C.montana(Forsius,1933) but differs from the latter in the lateral fovea round and not extending inwards,area between the two lateral foveae distinctly elevated;basal two antennomeres brown,the hind tibia with an apical black spot,and wings evenly infuscate.Holotype ♀,Guangxi,M t.M ao’er,Jiuniutang(25°53’N,110°26’E;alt.1980 m),9 June 2006,LIAO Fang-Jun(CSCS).Paratype 1 ♀,Guangxi,W uming,M t.Daming,23 M ay 1963,YANG Ji-Kun(CAUB).Etymology.T he new species is named after thesurname of collector of the holotype.2 Corrugia curvatispina Wei et Xiao,sp.nov.(Figs 5-8) Body length of female 7 mm,male unknown.T his new species is similar to Corrugia liaoae sp.nov.,but differs from the latter in the basal 2 antennomeres black;head in dorsal view 2 times as broad as long,frons with distinct lateral carina,the distance between antennal sockets 1.2 times as broad as the distance between antennal socket and inner orbit;antenna as long as head and thorax together,second antennomere distinctly shorter than the first antennomere,third antennomere distinctly longer than apical 3 antennomeres together;female lancet with distinctly sclerotized annular sutures,dorsal membrane of lancet very broad,apical process of lancet distinctly bent and obtuse at apex.Holotype ♀,Guangxi,W uming,M t.Daming,Longwei W aterfall(23° 29’ N,108° 25’ E;alt.1155 m),27 M ay 2011,LIU Yan-Xia,XUE JunZhe(CSCS).Etymology.T he new species is named after the distinctly curved apical spina of lancet.