The lovegrass noctuid moth (Hypena plagiota) was a moth in the family Erebidae.

The species was first described by Edward Meyrick in 1899.

It was endemic to Kauaʻi, Oʻahu, and Maui but is now considered extinct.

[1] Larvae have been recorded feeding on Eragrostis species.

This Hypeninae article is a stub.