移入種ハリエンジュギンモンツヤホソガ （新称） の日本初記録

抄録

Chrysaster ostensackenella (Fitch, 1859), a New World leaf-mining moth, was recorded from Hokkaido, representing the first report of its invasion in Japan. Larvae of C. ostensackenella feed on Robinia pseudoacacia L. and form blotch mines on the upper side of its leaflets. Comparisons of COI barcode markers show that the sequence obtained from the Japanese samples matched with those obtained from Virginia, USA with >98％ identity. This strongly suggests that this species is invasive Japan. Diagnostic morphological information of this species is provided.