Stegasta cosmodes is a moth of the family Gelechiidae.

The forewings are reddish ferruginous, with black-and-golden-metallic markings and a small black basal patch, the outer edge moderately straight, indented in the middle, where there are a few golden-metallic scales.

An irregular black quadrate spot is found on the costa immediately beyond, reaching more than half way across the wing and there is a second, similar to first, golden-metallic fascia, not so oblique as the first, immediately beyond the quadrate spot, sometimes broken, from the middle of the costa to the middle of the inner margin.

A small roundish ochreous-white spot is found on the costa at three-fourths, the lower half reddish tinged, reaching nearly half way across the wing and a golden-metallic patch of scales is found beneath, but slightly anterior.

This article on a moth of the tribe Gelechiini is a stub.