Ufeus plicatus. The whereabouts of the type of Ufeus plicatus, described from Philadelphia, Pennsylvania, is unknown. The details of the original description, however, indicate that the eastern populations formerly known as U. unicolor, syn. n., known from the Midwest (Illinois, Nebraska, Iowa), are referable to U. plicatus and represent a dark mid-western form of the species. More material from the East is now known (Quebec, Ontario, Connecticut), including the form with a longitudinal dark streak on the forewing mentioned in the original description of U. plicatus.