Crasimorpha peragrata is a moth in the family Gelechiidae.

The forewings are light fuscous, mostly irregularly overlaid with white suffusion, especially towards the costal and dorsal areas there are a few scattered blackish scales.

There is a slender irregular blackish streak along the fold mostly edged with white beneath, and a similar longitudinal streak from the middle of the disc to the termen, a similar streak above the posterior portion of this, as well as a blackish longitudinal streak between these two towards the termen, and a subdorsal one on the posterior half.

An elongate dark fuscous mark is found on the middle of the costa.

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