Pseudopostega quadristrigella is a moth of the family Opostegidae. It was described by Frey and Boll in 1876.Generic Revision of the Opostegidae, with a Synoptic Catalog of the World's Species (Lepidoptera: Nepticuloidea) It is known from Maine west to South Dakota and south to Texas.
The length of the forewings is 4.4–5.2 mm. Adults have been recorded from May to August.
References