湖南莽山及云南叶蜂科二新种一新亚种(膜翅目:蕨叶蜂科)  

Two New Species and a New Subspecies of Sawflies (Hymenoptera: Selandriidae) from Mt. Mangshan of Hunan and Yunnan, China

作　　者：魏美才[1] 肖炜[1] 

机构地区：[1]中南林学院,湖南株洲412006

出　　处：《Entomotaxonomia》2002年第1期69-75,共7页昆虫分类学报（英文）

基　　金：国家自然科学基金资助项目 (3 9870 6 0 9;3 0 0 70 6 2 7)

摘　　要：记述采自湖南省宜章县莽山和云南的叶蜂科 2新种和 1新亚种 :黑背平缝叶蜂N esoselandria nigrodorsalis Wei et Xiao,sp.nov.,隶属于蕨叶蜂亚科 (Selandriinae) ;莽山七节叶蜂 H eptamelus mangshanicus Wei,sp.nov.,隶属于七节叶蜂亚科 (Hep-tamelinae) ;斑角异三齿叶蜂黄腹亚种 Niasnoca apicalis rufiventris Wei,ssp.nov.,隶属于长背叶蜂亚科 (Strongylogasterinae)。Two new species and a new subspecies of Selandriidae from Mt. Mangshan of Hunan and Yunnan Province, China are described: Nesoselandria nigrodorsalis, Wei et Xiao, sp. nov., Heptamelus mangshanicus Wei, sp. nov., Niasnoca apicalis rufiventris Wei, ssp. nov. The type materials are deposited in the Insect Collection of Central South ForestryUniversity, Hunan, China 1. Nesoselandria nigrodorsalis Wei, sp. nov. (Fig.1) Female. Body length 5.0 mm; Black, following parts white: sternites 2～6 entirely, apical half of front coxa, most parts of four hind coxae, trochanters, base and apex of fore femur, middle and hind femora entirely, middle and apical parts of palpi, most parts of tibiae and four front tarsi. Wing strongly smoky. Body robust. Malar space hardly shorter than diameter of an ocellus, postocellar area 2 times wider than long with a distinct middle furrow, lateral furrows fine and straight and divergent backwards, head polished and shining. Antenna as long as head and thorax together with the third segment 1.3 times longer than the fourth one. Thorax impunctate; claw with inner tooth slightly shorter than outer tooth; petiole of hind anal cell about 1/2～2/3 length of vein cu-a. Lancet with a short apical process with 8 distinct annuli. Male. Body length 3.5 mm～4.0 mm. Color and structure similar to female except for following: legs darker with basal 2/3 of middle femur and sometimes the basal part of hind femur blackish brown, flagellum short and stout. Penis valve simple, harpes larger than parapenis. Holotype: ♀, paratypes: 5♀♀30♂♂, Mt. Mangshan, Hunan, China, 1260 m, April 20, 2001, Xiao W., Wei M, Zhong Y. (Central South Forestry University). Remarks. This new species is allied to Nesoselandria abdominalis (Enslin 1912) from South Asia but differs from it in the petiole of hind anal cell distinctly shorter than veincu-a, abdominal tergites black, harpes short and broad and larger than parapenis, as well as penis quite different. 2. Heptamelus mangshanicus Wei, sp. nov. (Fig.2) Male.

关 键 词：膜翅目 蕨叶蜂科 新种 湖南 云南 

分 类 号：Q969.542.1[生物学—昆虫学]