Northern Prairie Wildlife Research Center
Wingspan 4.7 cm. Forewing is dark-brown to black-brown with the reniform spot narrowly edged with white. This noctuid is very abundant in wet conifer forests, particularly wet coastal forests. Moths fly in early to midsummer. Caterpillars feed on grasses.
Similar species: Apamea amputatrix forewing with higher contrasting marks and bands, widely distributed in western North America; Apamea dubitans forewing is dark red-brown with a large white reniform spot, widely distributed; Apamea plutonia is smaller, forewing is black-brown, occurs in wet coastal forests.