Protogygiapryorensis Crabo & Kirst (Insecta, Lepidoptera, Noctuidae, Noctuinae, Noctuini), a new moth species from Montana, United States of America.

Protogygiapryorensissp. nov. (Insecta, Lepidoptera, Noctuidae, Noctuinae, Noctuini) is described from a single arid active sands habitat in the south foothills of the Pryor Mountains in south-central Montana, USA. It flies during early May. The adult male and its genitalia are illustrated and are compared to similar Protogygia McDunnough species. The female is unknown. Protogygia species groups are discussed and P.pryorensis is assigned to the album-group. The Pryor Mountains foothill habitat of P.pryorensis is described and illustrated.