Dichomeris simpliciella is a moth in the family Gelechiidae.

[2] It is found in North America, where it has been recorded from southern Alberta to Texas, eastern Washington, south-eastern Nevada and Arizona.

The dividing line is sharp and nearly straight from the base of the wing to the apex, but the fuscous part is slightly overlaid with ochreous in the apical third, except along the termen, where the dark colour is rather emphasized before the cilia.

At the end of the cell is a very light ochreous round dot.

[4] Adults are on wing from April to June and again from August to November.