Crambus cyrilellus is a moth in the family Crambidae. It was described by Alexander Barrett Klots in 1942. It is found in North America, where it has been recorded from Arizona, Colorado, New Mexico, Texas and Utah.mothphotographersgroup
The length of the forewings is 9.5–11 mm. Adults have been recorded on wing in May and July.American Museum Novitates No. 1191
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