外聚姬小蜂生物学特性初步研究

Preliminary study on the bionomics of Eulophus larvarum

虫蜀外聚姬小蜂Ｅｕｌｏｐｈｕｓｌａｒｖａｒｕｍ（Ｌｉｎｎａｅｕｓ）是首次报道寄生于杨扇舟蛾Ｃｌｏｓｔｅｒａａｎａｃｈｏｒｅｔａ（Ｆａｂｒｉｃｉｕｓ）、分月扇舟蛾Ｃ．ａｎａｓｔｏｍｏｓｉｓ（Ｌｉｎｎａｅｕｓ）、榆剑纹夜蛾ＡｃｒｏｎｉｃｔａｈｅｒｃｕｌｅｓＦｅｌｄｅｒ等幼虫的一种体外聚寄生蜂，一年４代，以蛹随寄主所在的叶片落地越冬。该蜂只能在刚刚蜕皮的寄主上产卵寄生。据野外调查寄生率为３０％以上，可人工繁育。

Eulophus Laruarum is first reported to parasitize the larvae of Clostera anachoreta,C.anastomosis and Acronicta hercules. Its an external gregarious parasite and can be bred artificially.Its parasitization in the field is above 30%. Eulophus laruarum has 4 generations a year and overwinters as pupa with the fallen leaves.It can only parasitize on the hosts that just finish the moulting.