Native to:
Alabama,
Albania,
Andaman Is.,
Angola,
Antipodean Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Assam,
Austria,
Azores,
Bahamas,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Belize,
Bermuda,
Bolivia,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Burundi,
California,
Cameroon,
Cape Provinces,
Caprivi Strip,
Chatham Is.,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Congo,
Connecticut,
Corse,
Costa Rica,
Cuba,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
Dominican Republic,
East Himalaya,
Ecuador,
El Salvador,
Ethiopia,
Falkland Is.,
Fiji,
Florida,
France,
French Guiana,
Galápagos,
Gambia,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Guinea,
Gulf of Guinea Is.,
Guyana,
Hainan,
Haiti,
Honduras,
Hungary,
Iceland,
Illinois,
India,
Indiana,
Iran,
Ireland,
Italy,
Jamaica,
Japan,
Jawa,
Kansas,
Kentucky,
Kenya,
Kermadec Is.,
Korea,
Kuril Is.,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Leeward Is.,
Lesser Sunda Is.,
Louisiana,
Macquarie Is.,
Madagascar,
Maine,
Malawi,
Malaya,
Maluku,
Marquesas,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Morocco,
Mozambique,
Myanmar,
Nansei-shoto,
Nepal,
Netherlands,
Nevada,
New Brunswick,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Nicaragua,
Nicobar Is.,
Norfolk Is.,
North Carolina,
Northern Provinces,
Northern Territory,
Norway,
Nova Scotia,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Palestine,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Poland,
Portugal,
Prince Edward I.,
Puerto Rico,
Queensland,
Québec,
Rhode I.,
Rwanda,
Réunion,
Sardegna,
Sicilia,
Solomon Is.,
Somalia,
South Australia,
South Carolina,
Spain,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Suriname,
Sweden,
Switzerland,
Taiwan,
Tanzania,
Tasmania,
Tennessee,
Texas,
Thailand,
Tibet,
Togo,
Transcaucasus,
Trinidad-Tobago,
Tristan da Cunha,
Turkey,
Uganda,
Ukraine,
Uruguay,
Utah,
Venezuela,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Windward Is.,
Wisconsin,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Extinct in:
Algeria
Introduced into:
Benin,
Cabinda,
Canary Is.,
Central American Pac,
Chagos Archipelago,
Eritrea,
Gabon,
Ghana,
Gulf States,
Hawaii,
Ivory Coast,
Krasnoyarsk,
Lesotho,
Liberia,
Mauritius,
Nigeria,
North Caucasus,
Rodrigues,
Samoa,
Senegal,
Swaziland