Northern Prairie Wildlife Research Center
Wingspan 3.7 cm. Forewing is pale gray or gray-brown with a black basal dash, an elongate orbicular spot and a small reniform spot. This noctuid is common and widely distributed in dry forests in the Pacific West. Moths fly in mid to late summer. Caterpillar host plant unknown.
Similar species: Xestia vernilis is similar in appearance and is differentiated by characteristics of the genitalia and distribution, widely distributed in the Rocky Mountain region; Xestia infimatis forewing is pale brown to black-brown, common in both wet conifer and dry forests in the Pacific West, caterpillars are generalist feeders on the foliage of flowering trees and shrubs.