松毛虫赤眼蜂个体发育研究

松毛虫赤眼蜂个体发育研究 STUDY ON THE DEVELOPMENT OF TRICHOGRAMMA DENDROLIMI 刘卫 Liu Wei first-author 罗建仁 Lui Jianren 熊平英 Xiong pingying 用常规组织学方法和透射电镜、扫描电镜研究了松毛虫赤眼蜂（Trichogramma dendrolimi）的个体发育。赤眼蜂个体发育可分为胚胎期、幼虫、预蛹、蛹期、成蜂羽化五个时期。卵为少黄卵。胚胎期仅形成消化道,其余各器官均在幼虫期和以后各期形成。本文确认囊胫腔中的黑色团粒是退化的卵黄细胞核,幼虫分为三个龄期,初龄幼虫有分节现象。在初龄和中龄末期各有一次蜕皮发生,成蜂具腹气门及胸气门各一对。 The development of Trichogramma dendrolimi has been studied in this paper. The development of T. dendrolimi is wholly in the host egg. The egg size of the parasite is very small（56-83μm） and the egg contains little yolk. In general the fertilized egg develops to female and the unfertilized egg becomes to male. After stopping to feed, the larva enters the prepupal stage. There are many small white spots called "plum spots" and some black secretion appears on the envelope. In the pupal stage, the body is well divided into head、throax and abdomen. The pupa is characterized by the appearance of red colour of the compound eye and ocelli. The alimentary canal of the parasite is formed in embryonic stage. The other internal organs are formed during the larval stage and the later stage of development. The development of T. dendrolimi rearing with artificial host eggs （which was made in Hubei province Cooperative Research Group of Artificial Host Egg of Trichogramma） has been studied and compared with that from natural host eggs. The results show that there is no distinguished difference between them. 赤眼蜂 发育 Trichogramma development 1989-01-01 2021-04-01 1