Eteoryctis deversa is a moth of the Gracillariidae family. It is known from India (Meghalaya, Assam), Japan (Kyūshū, Shikoku, Hokkaidō, Honshū), Korea, the Russian Far East and Taiwan. The wingspan is 6.5–10 mm. The larvae feed on Mangifera indica, Rhus ambigua, Rhus chinensis, Rhus japonica, Rhus javanica, Rhus semialata, Toxicodendron orientale, Toxicodendron succedaneum, Toxicodendron sylvestre and Toxicodendron trichocarpum. They probably mine the leaves of their host plant.