Prolonged embryonic stage and synchronized life-history of Platygaster robiniae (Hymenoptera: Platygastridae), a parasitoid of Obolodiplosis robiniae (Diptera: Cecidomyiidae)

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• 作者：Il-Kwon Kim¹ ; ^a ; Ji-Doo Park^a ; Sang-Chul Shin^a ; Il-Kwon Park ; ^a ; ^{parkik1@forest.go.kr}
• 关键词：Platygastridae ; Cecidomyiidae ; Koinobiont ; Embryonic stage ; Monembryonic ; Multivoltine
• 刊名：Biological Control
• 出版年：2011
• 出版时间：April 2011
• 年：2011
• 卷：57
• 期：1
• 页码：24-30
• 全文大小：879 K

文摘

Platygaster robiniae Buhl and Duso (Hymenoptera: Platygastridae) is a gregarious, koinobiont endoparasitoid of the locust gall midge, Obolodiplosis robiniae (Haldeman) (Diptera: Cecidomyiidae). P. robiniae is an egg-larval parasitoid, parasitizing eggs of O. robiniae and emerging from the host larvae. The eggs of the wasp develop monembryonically with a prolonged embryonic stage. After hatching, the parasitoid undergoes only two larval instars, and total development time from egg to adult takes about 28 days to complete. The life cycle of a parasitoid generation is synchronized with that of its host; the adult wasps’ emergence coincides with that of the host, so that they can parasitize the host eggs.