Crambus hamella is a species of moth in the family Crambidae described by Carl Peter Thunberg in 1788. It is found in most of Europe (except the Iberian Peninsula and most of the Balkan Peninsula),Fauna Europaea east to the Russian Far East (Amur, Sakhalin) and Japan. It is also found in North America, including Alberta, Arizona, Manitoba, Michigan, Oklahoma and Ontario.mothphotographersgroup
The wingspan is 18–23 mm. The forewings with apex slightly produced; brown, posteriorly whitish-sprinkled, terminally suffused with white; a broad snow - white pointed median longitudinal streak from base, not reaching second line, lower edge with a projection in middle; second line angulated, silvery - white, anteriorly dark-edged; a triangular white subapical spot; several terminal longitudinal black marks; cilia metallic. Hindwings are grey.Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf Keys and description See also Parsons et al.Mark Parsons, Sean Clancy, David Wilson A Guide to the Pyralid and Crambid Moths of Britain and Ireland: Atropos, England.
Adults are on wing from July to August in generation per year.UKmoths
The larvae feed on grasses, possibly including Deschampsia flexuosa.
Subspecies Crambus hamella hamella (Eurasia) Crambus hamella carpenterellus Packard, 1874 (North America)
References
External links Lepiforum de