Northern Prairie Wildlife Research Center
Wingspan 7.9 cm. Forewing is mottled black, gray, and red-brown with jagged black lines; hindwing is rosy red with a black median band narrowly constricted in the center and a broad black submarginal border. This noctuid is widely distributed in western North America. Moths fly in late summer. Caterpillars feed on the foliage of oak (Quercus).
Similar species: Catocala briseis is part of a species complex that contains at least 14 species in western North America with the black median band on the hindwing not narrowly constricted, these species occur in riparian habitats where their caterpillars feed on the foliage of willow (Salix) and poplar (Populus).