About Harrisimemna trisignata Walker, 1856
Harrisimemna trisignata, commonly known as Harris's three spot, is a moth species belonging to the family Noctuidae. It was first formally described by Francis Walker in 1856. This species is distributed across North America. In Canada, it occurs from Ontario, Quebec, New Brunswick, Nova Scotia, Newfoundland and Labrador, Alberta, and Saskatchewan, ranging south all the way to Arizona. In the United States, it has been recorded in Maryland, Pennsylvania, Wisconsin, Georgia, Illinois, Indiana, Iowa, New York, Ohio, Oklahoma, Tennessee, Texas, and Virginia. The wingspan of adult Harrisimemna trisignata measures between 30 and 36 mm. Within Canada, adult moths are active from May to August. The larvae of this species feed on a variety of woody plants, including wild raisin, winterberry, bush honeysuckle, black willow, white ash, and apple.
