Doubtfully present in:
Aleutian Is.
Native to:
Afghanistan,
Alabama,
Alaska,
Albania,
Alberta,
Algeria,
Altay,
Amur,
Arizona,
Arkansas,
Assam,
Austria,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
California,
Cameroon,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Corse,
Cyprus,
Czechoslovakia,
District of Columbia,
Djibouti,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Florida,
France,
Georgia,
Germany,
Greece,
Hungary,
Idaho,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Irkutsk,
Italy,
Kamchatka,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
Lebanon-Syria,
Libya,
Louisiana,
Madeira,
Magadan,
Malawi,
Manchuria,
Manitoba,
Maryland,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southwest,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Morocco,
Mozambique,
Myanmar,
Nebraska,
Nepal,
Nevada,
New Mexico,
Nigeria,
North Carolina,
North Caucasus,
North Dakota,
North European Russi,
Northwest European R,
Northwest Territorie,
Ohio,
Oklahoma,
Oman,
Oregon,
Pakistan,
Palestine,
Pennsylvania,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Rwanda,
Sardegna,
Saskatchewan,
Saudi Arabia,
Sicilia,
Sinai,
South Carolina,
South Dakota,
South European Russi,
Spain,
Sudan,
Switzerland,
Tadzhikistan,
Tanzania,
Tennessee,
Texas,
Thailand,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Uganda,
Ukraine,
Utah,
Uzbekistan,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Western Sahara,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon,
Zambia,
Zaïre
Introduced into:
Azores,
Canary Is.,
Connecticut,
Delaware,
Denmark,
Ecuador,
El Salvador,
Finland,
Great Britain,
Guatemala,
Honduras,
Ireland,
Massachusetts,
Michigan,
New Jersey,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Norway,
Ontario,
Rhode I.,
South Australia,
Sweden,
Vermont,
Western Australia