平背叶蜂族一新属新种暨分属检索表(膜翅目:叶蜂科)  

A New Sawfly Genus and Species of Allantini (s.str.) (Hymenoptera: Tenthredinidae) with a Key to Known Genera of the Tribe

作　　者：魏美才[1] 

机构地区：[1]中南林学院,湖南株洲412006

出　　处：《Entomotaxonomia》2004年第1期69-74,共6页昆虫分类学报（英文）

基　　金：国家自然科学基金(30070627);霍英东教育基金(81023);教育部跨世纪优秀人才基金联合资助项目

摘　　要：记述广西壮族自治区十万大山地区平背叶蜂族1新属:蔡氏叶蜂属Caiinagen.nov.及l新种:短鞘蔡氏叶蜂CaiinabrevithecaWeisp.nov.,该属隶属于叶蜂科平背叶蜂亚科平背叶蜂族歧爪叶蜂亚族,与歧爪叶蜂属NagamasaiaTogashi最近似,但唇基端部亚截形,缺口很浅,爪内齿不显著长于外齿,前翅2Rs室显著短于1R1+1Rs之和,后翅具1个封闭中室,Rs室开放,后足跗节明显长于胫节,锯鞘端等长于锯鞘基,锯刃平刃型,具多数微小的亚基齿,锯腹片刺毛带互相连接等,与之显著不同。编制了平背叶蜂族分亚族和属检索表。模式标本保存于中南林学院昆虫模式标本室。A new sawfly genus and species from Mt. Shiwandashan, Guangxi, China is described: Caiina brevitheca Wei gen. et sp. nov.. The new genus belongs to Subtribe Nagamasaiina, Tribe Allantini, Subfamily Allantinae of Tenthredinidae. It is most similar to Nagamasaia Togashi but differs from the latter in clypeus quite shallowly emarginated, claw with inner tooth not much longer than outer tooth, front wing with cell 2Rs much shorter than 1RI+IRs, hind wing with cell Rs open and cell M closed, hind tibia distinctly shorter than tarsus, sheath as long as oblong plate, serrulae flat with many minute subbasal teeth and pilose bands almost merging together. The new species is somewhat similar to some species of Darjilingia, but can be easily recognized from them by much different venation and claw. A key to known subtribes and genera of the tribe Allantini s.str. is also provided. Type specimen is deposited in Central South Forestry University, Zhuzhou, Hunan Province, China. Caiina brevitheca Wei, sp. nov. (Figs. 1~4) Holotype: ♀, Hongqi, Shiwandashan, Shangsi, Guangxi, 02-Ⅳ-2002, 350 m, CAI Ping.

关 键 词：膜翅目 叶蜂科 新属 新种 中国 

分 类 号：Q969[生物学—昆虫学]