Parasitoids of Dryocosmus kuriphilus (Hymenoptera: Cynipidae) in South Korea with Particular Reference to Ecologically Different Types of Torymus (Syntomaspis) sinensis (Hymenoptera: Torymidae)

概要

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Torymus (Syntomaspis) sinensis was recently recorded in South Korea as a native parasitoid of the chestnut gall wasp, Dryocosmus kuriphilus, and proved differ from a Chinese population, which was imported into Japan and has become established, in the seasonal prevalence of adult emergence. Findings of the present study suggest that the parasitoid which has been recorded in South Korea as "Torymus beneficus" is probably not beneficus but, in fact, T. (S.) sinensis, and that the Korean populations of T. (S.) sinensis might possibly consist of two types differing in the period of adult emergence. Eight species of parasitoids emerged from with-sites. Seven other parasitoids, Torymus (Torymus) geranii, Ormyrus punctiger, Eurytoma setigera, E. brunniventris, Sycophila variegata, Eupelmus urozonus and Eupelmus sp. of the first generation, were considered to parasitize the chestnut gall wasp as primary parasitoids and those of the following generations act as hyperparasitoids.
日本応用動物昆虫学会の論文
1995-05-25