The Wavy Chestnut Y (Autographa mappa) is a moth of the Noctuidae family. It is found from Newfoundland west across the wooded portions of Canada to Vancouver Island, south in the east to Maine, New Hampshire and Wisconsin, and in the western mountains south to Colorado and Oregon. The wingspan is 35–40 mm. Adults are on wing from June to August depending on the location. There is one generation per year. The larvae feed on Urtica and Vaccinium species.