| Crambus pratella, Crambus pascuella, Crambus perlella, Crambus uliginosellus, Pediasia aridella|Crambus hamella hamella (Eurasia)
Crambus hamella carpenterellus Packard, 1874 (North America)
Crambus hamella Wikipedia
Crambus hamella is a species of moth in the Crambidae family. It is found in most of Europe (except the Iberian Peninsula and most of the Balkan Peninsula), 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.
The wingspan is 18–23 mm. Adults are on wing from July to August in generation per year.
The larvae feed on grasses, possibly including Deschampsia flexuosa.