Lethata dispersa is a moth of the family Depressariidae.

It is found in Brazil (Matto Grosso).

The forewings are yellow with the costa rosy and the dorsum narrowly edged brown and with a faint spot in the fold brown.

There is an oblique brown line extending from the costa at near the midpoint through a spot at the end of the cell to the tornus.

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