Comadia arenae is a moth in the family Cossidae. It is found in North America, where it has been recorded from California.Comadia at funet
The forewing is 13–17 mm., 1975: A revision the North American Comadia (Cossidae). The Journal of Research on the Lepidoptera, 14 (4): 180-212. Full article: Adults have been recorded on wing from June to July.mothphotographersgroup
References
Natural History Museum Lepidoptera generic names catalog