Ressia quercidentella is a moth in the family Cosmopterigidae. It is found in China (Henan, Tianjin), Korea and the Russian Far East.
The wingspan is 10–11.5 mm.Discovery of the Genus Ressia Sinev (Lepidoptera: Cosmopterigidae) in China, with Description of One New Species
References
Natural History Museum Lepidoptera generic names catalog