中国角胸泥蜂科的研究及一新种记述(膜翅目:泥蜂总科,角胸泥蜂科)

A STUDY ON CHINESE NYSSONIDAE WITH DESCRIPTION OF A NEW SPECIES (HYMENOPTERA: SPHECOIDEA, NYSSONIDAE)

角胸泥蜂科 Nyssonidae 一般为小型或中型,体黑色或红色,具少数黄斑。为Gorytin及Larrin的盗食寄生蜂。 本科主要特征为:前胸背板领片横行突起,短于小盾片;中足胫节具两个端距;后足腿节正常;并胸腹节后侧缘具齿或尖角状突起;前翅第一肘室在翅痣前的长度不超过该室总长的1/2;前翅径室顶端尖或圆,无副室;后翅轭叶小,不超过臀区的1/2;腹部第1节腹板有两条显著的纵隆脊,但无中隆脊。

The present paper deals with 5 species of Nyssonidae from China.Among them one is described as new to science The type specimensare kept in the Institute of Zoology,Academia Sinica.Brachystegus ciliosus sp.nov.(figs.3-5)Length 9-11 mm.Black with yellow spots.Similar to Brachystegus pieli(Yasumat-su).the main differences are:Propodeum shorter than the scutellum,not equal to the 1st abdominal termite with two large spots,the apical margin of 2nd-4th abdominal tergites with narrow yellow hand,not each of the 1st-5th abdominal tergites with yellow spot;body covered with short yellowish hairs.Holotype,Yunnan,Jinpingmengla,430 M,26,IV,1956,Huang Ke-ren Col.Pararype,Yunnan Xishuangbanna Mengygen,20,Ⅵ.1957,Zang Lin-chou Col.Nipponnysson rufopinus Yasumatsu et Maidl Nysson trimaculatus Ross and Nysson macu-latus Fabricius are three new recorded species.