|scientific name Crambus perlella |
Native and other grasslands.
July to August.
A medium sized Crambus (20-24 mm wingspan). Forewing pure silvery white, lacking a discal stripe. Hind wing also pure white. North American material belongs to the subspecies innotatellus Wlk. No other crambid has these features, but a tortricid, Eana argentana, is superficially quite similar. The latter, however, has labial palps that are only the length of the head.
Diurnal and comes to light. The immature stages have been described by Felt (1894). Scholtens (1996) states that it is "one of the weedy Crambus species in northern Michigan". Common in the prairies, aspen parkland and foothills in Alberta.
Common to abundant, of no concern.
No local information, but roots of various grasses elsewhere.
The nominate subspecies is widespread in Europe. Only the subspecies innotatellus is found in North America, where it is widespread. Fernald (1896) has it from Nova Scotia, New Brunswick, Quebec, Ontario, Maine, New Hampshire, Massachusetts, New York, Ohio, Illinois and California. In addition, it has been reported from New York, Pennsylvania, Illinois and California by Forbes (1923); and from South Dakota (McDaniel et al 1984).
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