Greya marginimaculata is a moth of the family Prodoxidae. It is found in Japan on the main island of Honshu and possibly the Russian Far East.M. V. Kozlov 1996: Incurvariidae and Prodoxidae (Lepidoptera) from Siberia and the Russian Far East, with descriptions of two new species. - Entomologica Fennica 7: 55-62.
The wingspan is 14–16 mm.TOLweb
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