Tonica senescens is a moth in the family Depressariidae.
The forewings are whitish ochreous mixed or suffused with light brownish, more or less strewn with blackish scales tending to be arranged in longitudinal lines.
The stigmata is represented by tufts of mixed brownish and whitish-ochreous scales and the prominences of the costa are marked with similar tufts.
There is an angulated transverse series of small tufts about four-fifths, and others along the termen.
This article on a moth of the subfamily Depressariinae is a stub.