A New Species of the Genus Aprostocetus Westwood (Hymenoptera:Eulophidea) from China

A new species of the genus Aprostocetus Westwood in Zhejiang Province is described and illustrated.The type specimens are deposited in the Institute of Applied Entomology,College of Agriculture Biotechnology,Zhejiang University. Aprostocetus dryocosmi Wu et Xu,sp.nov.(Fig.1) Length of body:2 2 mm. Host:Dryocosmus kuriphilus (Hymenoptera: Cynipidae). Distribution:Zhejiang(Jiangshan,Anji). Specimens examined:Holotype ♀,Jiangshan(28 7° N,118 6° E),Zhejiang, 2001 03 27, C200102 2.Paratype 1♀,Jiangshan(28 7° N,118 6° E),Zhejiang, 2001 03 27, C200102 2; 1♀, Anji(30 6° N,119 6° E), Zhejiang, 2001 03 28, C200104 2. The female of this new species is close to Aprostocetus diplosidis Crawford,but different from the latter in:(1)the propodeum more than 1/6 as long as scutellum,the latter extremely short,and only 1/10 as long as scutellum;(2)gaster as long as thorax and propodeum combined,the latter always longer;(3)ovipositor exserted a little,the latter markedly exserted.