Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Obscure Underwing (Catocala obscura) is a moth of the Noctuidae family. In Canada it is found in southern Quebec (where it is rare) and Ontario and in the United States it is found from Massachusetts and Connecticut south to North Carolina, west to Mississippi and north to Iowa, Illinois, Ohio and Michigan. The wingspan is 60-72 mm. Adults are on wing from July to October depending on the location. The larvae feed on Carya glabra, Carya illinoinensis, Carya ovata and Juglans nigra.