Northern America Eastern Canada New Brunswick Nova Scotia Prince Edward I. Mexico Mexico Northwest North-Central U.S.A. Missouri Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont Northwestern U.S.A. Idaho Montana Oregon Washington Wyoming Southeastern U.S.A. Delaware District of Columbia Maryland North Carolina Virginia Southwestern U.S.A. California Subarctic America Alaska Western Canada British Columbia Introduced into Asia-Temperate Siberia West Siberia Europe Eastern Europe Central European Russia East European Russia South European Russia Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Northern Europe Denmark Finland Great Britain Ireland Norway Sweden Southeastern Europe Bulgaria Romania Yugoslavia Southwestern Europe France Northern America North-Central U.S.A. Illinois

Northern America Eastern Canada New Brunswick Nova Scotia Prince Edward I. Mexico Mexico Northwest North-Central U.S.A. Missouri Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont Northwestern U.S.A. Idaho Montana Oregon Washington Wyoming Southeastern U.S.A. Delaware District of Columbia Maryland North Carolina Virginia Southwestern U.S.A. California Subarctic America Alaska Western Canada British Columbia Introduced into Asia-Temperate Siberia West Siberia Europe Eastern Europe Central European Russia East European Russia South European Russia Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Northern Europe Denmark Finland Great Britain Ireland Norway Sweden Southeastern Europe Bulgaria Romania Yugoslavia Southwestern Europe France Northern America North-Central U.S.A. Illinois