Eosopostega issikii is a species of moth of the family Opostegidae. It is known only from the Izu Peninsula in south-central Honshu and from Kagoshima at the south-western tip of Kyushu.
The length of the forewings is about 3.8 mm for males. Adults are on wing in June in one generation.
External links Generic Revision of the Opostegidae, with a Synoptic Catalog of the World's Species (Lepidoptera: Nepticuloidea)