Pseudopostega monstruosa is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. It is only known from Amazonian premontane rainforest in east-central Ecuador.
The length of the forewings is about 3 mm. Adults are mostly white. Adults have been collected in January.
External links A Revision of the New World Plant-Mining Moths of the Family Opostegidae (Lepidoptera: Nepticuloidea)