Barrens dagger moth (Acronicta albarufa) is a moth of the Noctuidae family. It has a fragmented distribution that includes southern Ontario and Manitoba, New York, New Jersey, Massachusetts, North Carolina, Virginia, Georgia, Oklahoma, Missouri, Arkansas, and Colorado. It may also be present in Ohio, Pennsylvania, Connecticut, mainland New York and New Mexico. It has been suggested that populations in the south-western United States may be a separate species.