Ethmia tilneyorum
Ethmia tilneyorum is a moth in the family Depressariidae. It is found in Costa Rica, where it has been recorded from the Pacific slope of the Cordillera Volcánica de Guanacaste and on the Península de Nicoya at altitudes between. Its habitat consists of dry forests.
The length of the forewings is for males and for females.
The larvae feed on Cordia gerascanthus.