The Messalina Underwing (Catocala messalina) is a moth of the Erebidae family. It is found from Virginia south to Florida and west to Texas and north to Kansas. The wingspan is 40-45 mm. Adults are on wing from May to August. There is probably one generation per year. The larvae feed on Quercus geminata, Quercus hemisphaerica and Quercus virginiana.