Caloptilia issikii is a moth of the family Gracillariidae. It is known from China, Japan (the islands of Hokkaidō and Honshū) and the Russian Far East.Global Taxonomic Database of Gracillariidae (Lepidoptera)
The wingspan is 10.8-11.5 mm.
The larvae feed on Alnus species, including Alnus japonica. They mine the leaves of their host plant.
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