湖南省长柄茧蜂属两新种(膜翅目:茧蜂科:优茧蜂亚科)

TWO NEW SPECIES OF STREBLOCERA WESTWOOD FROM HUNAN,CHINA (HYMENOPTERA:BRACONIDAE:EUPHORINAE)

本文记述分布湖南省城步县的长柄茧峰属 Streblocera两新种,赵氏长柄茧蜂Streblocera chaoiYou et Zhou,sp.nov,,何氏长柄茧蜂Streblocera hei You et Xiao,sp.nov,模式标本存于湖南农学院。

This paper gives descriptions of two new species of the genus Streblocera Westwood,which are named in honour of Prof. Chao Hsiu-fu and Prof. He Jun-hua for offering us help. Streblocera chaoi You et Zhou, sp. nov. （figs. 1--6） This species is related to S. sungkangensis Chou, but the latter differs from the newspecies as follows: scape with a pointed tooth near the base; clypeus along lower margin witha pair of tubercles; ovipositor sheath 1.3 times as long as hind basitarsomere. This newspecies is also closely related to S. cerva De Saeger, but the latter differs from the new species chiefly in the following chararters: Antennal segments 24; head in dorsal view 1.92 times （70:38） broader than long; length of 1st tergite 3 times its apical width. （63:21） Length: 3mm. Holotype , Chenbu County （26°25′N, 110°E, 1640m）Hunan Province, Ang. 29, 1985,collected by You Lav-hao. Streblocera hei You et Xiao, sp. nov. （figs. 7--14） This new species is related to S. fulviceps Westwood, but differs from the latter as fol-lows: antennal segments 17, scape with a trail of tooth on under surface near the base; F1produced beneath into a hook-like tooth at the apex, and is about 1/3 times as long as scape;Ovipositor raised and close to the upper margin of abdomenal apex; male antennal segments20. The new species is also related to S. lini Chou, but is distinguishable from the latterchiefly by the following characters: antennal segments 17, first tergum 1.85 times as long aswide apically, and areola and transverse carinae of propodeum are defferent in shape. Length: , 2mm. Holotype , allotype , paratype 1, Chengbu Chunty （26°25′N, 110°E, 1640m）, HunanProvince. July 16, 1989, collected by Xiao Tie-guang. All types specimens are deposited inHunan Agricultural College, Changsha. The authors wish to express their sincere thanks to Dr. S. R. Shaw for his help.