Eurois astricta  Eurois astricta, the great brown dart, is a species of cutworm or dart moth in the family Noctuidae. It was first described by Herbert Knowles Morrison in 1874 and it is found in North America. Two subspecies belong to "Eurois astricta": Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net