【摘要】 <正> 本文记述了北京市楔缘金小蜂属Pachyneuron 4种,其中1新种,1中国新记录,1北京新记录。本文以描述新种为主,并附有种的检索表。 属征:缘脉呈楔状加粗,端部粗于基部;盾纵沟不完整;具腹柄;第二腹节明显短于其后各节之和。该属中名以前称宽缘金小蜂,为了更确切地反映属征,便于与有关属区别,改作楔缘金小蜂。更多还原

【Abstract】 In this paper a new species is described with a key to species of Pachy-neuron of Beijing. All specimens, including type specimens, are deposited in the Institute of Zoology, Academia Sinica. Pachyneuron aciliatum sp. nov.The species is easily separated from the other species of Pachyneuron by fringe of fore wing completely absent. It is related to Pachyneuron grande Thomson in the other characters, but differs from it by scape not reaching the median ocellus and funicule transverse.Holotype (?), Xiangshan Mountain, Beijing, 9-V-1984, collected by Huang Dawei; Paratype (?), Huairou County, Beijing, 18-X-1981, collected by Shi Baocai.更多还原