About Acronicta interrupta Guenée, 1852
Acronicta interrupta, commonly called the interrupted dagger moth, is a moth species belonging to the family Noctuidae. This species was first described by Achille Guenée in 1852. Its range spans southern Canada, located south of the boreal forest, stretching from New Brunswick west to eastern Alberta, and extending south into the United States to Georgia, Nebraska, and Arizona. The wingspan of adult interrupted dagger moths measures 35 to 42 mm. Adults are active in flight from April to August or September, with the timing varying by location. In the southern part of its range, this species produces two or more generations per year, while the northern part of its range sees only one generation annually. The larvae of Acronicta interrupta feed on the leaves of apple, apricot, birch, cherry, crabapple, elm, hawthorn, hop-hornbeam, mountain-ash, oak, plum, and willow plants.
