Phyllonorycter pterocaryae is a moth of the family Gracillariidae. It is known from the island of Hokkaidō in Japan from the Russian Far East.Global Taxonomic Database of Gracillariidae (Lepidoptera)
The wingspan is 5–6 mm.
The larvae feed on Juglans ailanthifolia, Juglans mandschurica, Juglans regia, and Pterocarya rhoifolia. They mine the leaves of their host plant.
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