Pselnophorus vilis
Pselnophorus vilis is a moth of the Pterophoridae family. It known from Japan (Hokkaido, Honshu, Kyushu, Tanega-shima, Yaku-shima), Amur, Korea and China.
The wingspan is 14–17 millimetres (0.55–0.67 in)[1] and the length of the forewings is 9–11 millimetres (0.35–0.43 in).
The larvae feed on Ligularia fisheri, Ligularia tussilaginea and Petasites japonicus. When feeding on Ligularia tussilaginea, the larva usually eats the leaf from the upper surface and the lower epidermis is left untouched. Rarely, the larva eats the leaf from the under surface. The pupa is usually attached to the upper surface of a leaf. When feeding on Ligularia fisheri, the larva eats the leaf from the upper or under surface and eats large patches, here the epidermis is not left.
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