Achyra occidentalis is a moth in the family Crambidae. It was described by Packard in 1873.[1] It is found in North America, where it has been recorded from Arizona, California and Nevada.[2]
The length of the forewings is 10–. There are two forms, a dark and pale form. Adults of the dark form are on wing from March to April, while those of the pale form are on wing from June to August.[3]