Eudonia expallidalis is a moth in the family Crambidae. It was described by Harrison Gray Dyar Jr. in 1906. It is found in North America, where it has been recorded from Washington to Nevada and California.Moth Photographers Group at Mississippi State University
The wingspan is about 20 mm. The forewings are pale gray with a pale brown inner line. The hindwings are white, tinged with gray.Journal of the New York Entomological Society 14: 101 Adults have been recorded on wing in March and from May to July.
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