Ethmia nigroapicella, commonly known as the kou leafworm, is a moth of the family Depressariidae.

It is found in Madagascar, the Seychelles, India, Assam, Burma, Samoa, the Philippines, Hawaii, Taiwan, Japan and Australia.

The forewings are overlaid with fifteen black dots on a grey background and a row of seven marginal dots.

japonica, Ehretia laevis and Ehretia buxifolia[citation needed]), as well as on Cordia subcordata and Cordia sebestena.

[2] This article on a moth of the subfamily Ethmiinae is a stub.