Ecotypes of Torymus (Syntomaspis) beneficus YASUMATSU et KAMIJO (Hymenoptera : Torymidae) with Different Seasonal Prevalences of Adult Emergence
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It is known that the adult emergence curve of Torymus (Syntomaspis) beneficus, a native parasitoid of the chestnut gall wasp, Dryocosmus kuriphilus, has two peaks in the Ibaraki district. Samples of withered galls of D. kuriphilus were collected from various localities and placed in a meteorological screen in Fukuoka to investigate the seasonal prevalence of adult emergence of T. (S.) beneficus. It was evident that there were at least three ecotypes of the parasitoid with defferent curves of adult appearance. As these type sere complicated in their geographical distributions, they should not be regarded as geographical ecotypes which have adapted to the climatic conditions in each locality. Alternatively, it was supposed that these types may have originated from diffrerent ecotypes of the same species which attacked different native cynipid hosts before D. kuriphilus was accidentally introduced into Japan.
- 日本応用動物昆虫学会の論文
- 1988-02-25
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関連論文
- Parasitoids of Dryocosmus kuriphilus (Hymenoptera: Cynipidae) in South Korea with Particular Reference to Ecologically Different Types of Torymus (Syntomaspis) sinensis (Hymenoptera: Torymidae)
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- Natural Enemies of the Chestnut Gall Wasp in Hopei Province, China : Hymenoptera : Chalcidoidea
- Validity of the ""Greenish Gall"" as an Indicator for Evaluating the Effectiveness of Parasitoids (Hyme-noptera : Chalcidoidea) of Dryocosmus kuriphilus Yasumatsu (Hymenoptera : Cynipidae)
- Behavioural Sequences of Oviposition and Host-Feeding of Torymus (Syntomaspis) beneficus YASUMATSU et KAMIJO (Hymenoptera : Torymidae), a Native Parasitoid of Dryocosmus kuriphilus YASUMATSU (Hymenoptera : Cynipidae)
- Ecotypes of Torymus (Syntomaspis) beneficus YASUMATSU et KAMIJO (Hymenoptera : Torymidae) with Different Seasonal Prevalences of Adult Emergence