This species can be found from 140-1,350m asl in the Appalachian region, USA. Its range therefore includes extreme south-western Pennsylvania, extreme western Maryland, and southern Ohio to northern Alabama and extreme north-eastern Mississippi, with a disjunctive area in south-western North Carolina and adjacent South Carolina and Georgia, and additional isolated populations in central Tennessee and north-eastern West Virginia (Conant and Collins 1991). It was recently also recorded in Crawford County, Indiana (Madej 1998).