ⓘ Catocala atocala

                                     

ⓘ Atocala underwing

Catocala atocala, Brous underwing or the atocala underwing, is a moth of the family Erebidae. It is found from Louisiana west to Oklahoma and north to southern Illinois.

Adults are on wing from July to August. There is probably one generation per year.

The larvae feed on Juglans cinerea and Juglans nigra.