About Amphipyra pyramidoides Guenée, 1852
Amphipyra pyramidoides, commonly known as the copper underwing, is a species of moth belonging to the family Noctuidae. This moth is found in the United States and southern Canada. Its wingspan measures 38 to 52 mm. Adults are active in flight from July through October, with the timing varying depending on location. There is one new generation of this moth each year, and they overwinter in the egg stage. Caterpillars of this species are green, with a white middorsal spiracular line, yellow spotting, and a distinct hump on their eighth abdominal segment. Adult copper underwings have dappled brown forewings, and white hindwings marked with a black cross line and suffused with coppery orange. The larvae feed on the leaves of a wide variety of broadleaf trees and shrubs, including apple, basswood, hawthorn, maple, oak, walnut, raspberry, grape, and greenbrier (Smilax). Larvae are active during the spring. When they are ready to pupate, they construct a shelter by rolling a leaf. Aggregations of newly emerged adults can be found under bark and similar locations in mid-summer.
