Ethmia randycurtisi is a moth in the Depressariidae family. It is found in Costa Rica, where it has been recorded from the Cordillera Volcánica de Tilarán and Cordillera Volcánica Central al altitudes ranging from 1,200 to 1,600 meters. The length of the forewings is 13.3–13.4 mm for males and 13.3–15.5 mm for females. The ground color of the forewings is whitish with a series of elongated dark markings. The hindwing ground colour is whitish, but pale brown towards the margin.