Tonica argessa is a moth in the family Depressariidae.

The upper half is sparsely strewn with sordid pale ochreous-greyish dots and a few dark brown minute scales.

There is a transverse almost straight crest of raised scales, mixed with sordid pale ochreous greyish and tawny, becoming slightly broader downwards, from the upper edge of the cell to the middle of the fold and a minute ochreous-greyish tuft on the base of vein six.

The hindwings are yellowish white, with a silky gloss.

This article on a moth of the subfamily Depressariinae is a stub.