摘要
报道寄生介壳虫的跳小蜂 3新种 ,即采自新疆的昌吉跳小蜂 Encyrtuschangjiensis Xu,sp.n.、采自吉林的缢盾伊丽跳小蜂 Ericydnus scutellus Xu,sp.n.和采自甘肃的宽额苏泊跳小蜂 Subprionomitus frontatus Xu,sp.n.。本文也是伊丽跳小蜂属 Ericydnus Walker和苏泊跳小蜂属 Subprionomitus Mercet在我国分布的首次记录。
The paper presents three new species of Encyrtid parassitic wasps on scale insects, collected from Xinjiang, Jilin and Gansu provinces, China. i. e. Encyrtus changjiensis Xu sp. n., Ericydnus scutellus Xu sp. n. and Subprionomitus frontatus Xu, sp. n.. Both Ericydnus Walker and Subprionomitus Mercet are recorded from China for the first time. All the specimens are deposited in Institute of Applied Entomology, Zhejiang University. Encyrtus Latreille 1. Encyrtus changjiensis Xu, sp. nov. (Figs.1～2) Host: unknown. Distribution: Changji, Xinjiang. Specimens examined: holotype ♀, Miaoergou, Changji (44°0′N, 81°18′E), Xinjiang, 2-Ⅶ-1988, Wang Min, C9517 1; paratype 1♀, same data as holotype. Diagnosis: this new species is similar to Encyrtus lecaniorum (Mayr 1876), but 1) body clearly robuster than the latter; 2) no black setae along hind cheeks after oral ridge; 3) thorax dorsally yellowish brown except hind margin of axillaris, which are black. Ericydnus Walker, new record 2. Ericydnus scutellus Xu, sp. nov. (Figs.3～6) Host: unknown. Distribution: Liaoyuan, Jilin. Specimens examined: holotype ♀, Liaoyuan (42°54′N, 125°6′E), Jilin, 5-Ⅶ-1991, Lou Juxian, C95068; paratypes 2♀♀, same data as holotype. Diangosis: this new species is similar to Ericydnus strigosis Nees 1834, but can be distinguished by 1) first funicle segment 2.0 times as long as wide, first sixth funicle segments equal in length, sixth funicle segment 1.3 times as long as wide, the latter with first funicle segment 1.5 times as long as wide, first sixth funicle segments shortened, sixth funicle segment as long as wide; 2) scutellum with apically strongly membranous expansion, in doersal view with subapically ligulate constriction, the latter without a subapically ligulate constriction, membranous expansion slightly developed; 3) propodeum transverse ridged, the latter without ridge on propodeum. Subprionomitus Mercet, new record 3. Subprionomitus frontatus
基金
国家自然科学基金资助项目!No.39770 62 0
