Elachista amamii

Elachista amamii is a moth of the family Elachistidae. It is found in the Ryukyu Islands of Japan and in Taiwan.

The length of the forewings is 2.4–3 mm for males and 2.5–3 mm for females.

The larvae feed on Thuerea involuta, Digitaria timorensis and Digitaria adscendens. They mine the leaves of their host plant.