Native to:
Afghanistan,
Alabama,
Albania,
Algeria,
Altay,
Amur,
Andaman Is.,
Angola,
Argentina Northeast,
Assam,
Austria,
Azores,
Bangladesh,
Benin,
Borneo,
Botswana,
Brazil South,
British Columbia,
Bulgaria,
Burkina,
Burundi,
California,
Cameroon,
Cape Provinces,
Caprivi Strip,
Caroline Is.,
Central African Repu,
Central European Rus,
Chad,
China North-Central,
China South-Central,
China Southeast,
Colorado,
Congo,
Connecticut,
Corse,
Czechoslovakia,
Delaware,
District of Columbia,
East Himalaya,
Egypt,
Equatorial Guinea,
Eritrea,
Ethiopia,
Fiji,
Florida,
France,
Free State,
Gabon,
Gambia,
Georgia,
Germany,
Ghana,
Greece,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Hainan,
Hawaii,
Hungary,
Illinois,
India,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Italy,
Ivory Coast,
Japan,
Jawa,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
KwaZulu-Natal,
Lesotho,
Lesser Sunda Is.,
Liberia,
Libya,
Louisiana,
Madagascar,
Maine,
Malawi,
Malaya,
Mali,
Manchuria,
Marianas,
Maryland,
Massachusetts,
Mauritania,
Mauritius,
Mexico Northeast,
Mexico Southeast,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nebraska,
Nepal,
New Brunswick,
New Guinea,
New Hampshire,
New Jersey,
New South Wales,
New York,
Niger,
Nigeria,
North Carolina,
North Caucasus,
Northern Provinces,
Northern Territory,
Ohio,
Oklahoma,
Ontario,
Pakistan,
Palestine,
Paraguay,
Pennsylvania,
Philippines,
Poland,
Portugal,
Primorye,
Queensland,
Québec,
Rhode I.,
Romania,
Rwanda,
Saudi Arabia,
Senegal,
Seychelles,
Sicilia,
Sierra Leone,
Somalia,
South Australia,
South Carolina,
South Dakota,
South European Russi,
Spain,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Switzerland,
Tadzhikistan,
Taiwan,
Tanzania,
Tennessee,
Texas,
Thailand,
Tibet,
Togo,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Uganda,
Ukraine,
Utah,
Uzbekistan,
Vanuatu,
Vermont,
Victoria,
Vietnam,
Virginia,
West Himalaya,
West Siberia,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Xinjiang,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Extinct in:
Réunion
Introduced into:
Oregon,
Sardegna