Pseudopostega serrata is a moth of the family Opostegidae.

It is widespread in Costa Rica up to elevations of 1,520 meters.

Adults are on wing through much of the year in Costa Rica, with known records from January, March, April, May and from July to September.

There is one record for January in Ecuador and March in Panama.

This article relating to the family Opostegidae is a stub.