Torymus beneficus (parasitoid)

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Torymus beneficus (parasitoid) Yasumatsu & Kamijo, 1979

This wasp is found in Japan and neighbouring countries and is a parasitoid of the chestnut gall wasp, Dryocosmus kuriphilus and other Cynipidae. Morphologically it is very similar to Torymus sinensis, a species introduced into various countries against D. kuriphilus. In Japan, T. beneficus can interbreed with the introduced T. sinensis (Toda et al., 2000).