We collected culled forewings of moths from 26 feeding roosts to determine the species of moths consumed by the Virginia big-eared bat (Corynorhinus townsendii virginianus) in eastern Kentucky in June, July and August 1992. Feeding roosts were located in cliffs adjacent to two maternity and one bachelor roosts. A total of 45 species of moths were identified from 222 forewings collected, representing six families: Noctuidae (n = 139), Sphingidae (n = 41), Geometridae (n = 24), Notodontidae (n = 13), Thyatiridae (n = 3) and Lymantriidae (n = 2). Length of forewings collected ranged from 1.3–4.1 cm. The majority (77.8%) of species of moths eaten by C. t. virginianus develop from larvae dependent on forest plant species.