富山県で2023年に確認されたツヤハダゴマダラカミキリの記録一覧

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  • Records of Anoplophora glabripennis (Motschulsky, 1853) (Coleoptera, Cerambycidae) collected in Toyama Prefecture, central Japan in 2023

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Distribution and attacks on trees by Asian Long-horned Beetle Anoplophora glabripennis (Motschulsky, 1853) were surveyed in Toyama Prefecture in 2023. Fifty-eight individuals were confirmed at 21 sites between June 30 and October 14, 2023. Combining the results of previous studies and this survey, the following four points were revealed: this species is densely distributed in the plain between the Jinzû-gawa River and the Jôganji-gawa River; in the western part of Toyama, it is becoming established west of the Kureha-kyûryô Hills; in the southern part of Toyama, although its establishment has not been confirmed, dispersed individual has been observed in the mountains around Mt. Sarukura-yama; and in the eastern part of Toyama, it has invaded as far as Kamiichi-machi Town. Two adult individuals were collected at Botanic Gardens of Toyama on October 14, 2023, which was the latest record in Toyama for the last sighting of an adult individual. Attacks on Acer sp. by this beetle was confirmed during this survey. This is the first record in Toyama. Combining the results of previous studies and this survey, attacks on trees have been confirmed in five species in Toyama.

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