Larisa is a genus of moths belonging to the subfamily Olethreutinae of the family Tortricidae. It contains only one species, Larisa subsolana, which is found in North America, where it has been recorded from Alabama, Florida, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Minnesota, Mississippi, Missouri, New York, Ohio, Oklahoma, Ontario, Quebec, South Carolina, Tennessee, Texas, Virginia and West Virginia.
The length of the forewings is 3.8-5.8 mm for males and 4.1-6.3 mm for females. The ground colour of the forewings is brown with a sharply delineated basal patch. The middle cross-band is greyish brown, grading to darker brown apically. There is a thin brown line centrally from the costa to the dorsum and the distal third is greyish brown, tinged in with rust in the costal half. Adults are mainly on wing from May to August.
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