Omiodes anastreptoides is a moth of the Crambidae family. It is endemic to Hawaii. It was first cited as possibly extinct in 1994 by the U.S. Fish & Wildlife Service. It was listed as extinct by the Hawai‘i Biological Survey in 2002, but was rediscovered in 2003. The larvae feed on Carex wahuensis. They feed in spun together leaves of their host plant. Full-grown larvae are 20–25 mm long and grass green. The pupa is 11–12 mm long and brownish. The pupal period lasts 12–13 days.