Chrysaster hagicola is a moth of the family Gracillariidae. It is known from Japan (Hokkaidō, Honshū, Shikoku and Kyūshū), Korea and the Russian Far East.Global Taxonomic Database of Gracillariidae (Lepidoptera)
The wingspan is 4.5–5 mm.
The larvae feed on Lespedeza bicolor and Lespedeza cyrtobotrya. They mine the leaves of their host plant.
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