Native to:
Afghanistan,
Alabama,
Algeria,
Andaman Is.,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Assam,
Bahamas,
Bangladesh,
Belize,
Benin,
Bolivia,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Burkina,
Burundi,
California,
Cambodia,
Cameroon,
Cape Provinces,
Caprivi Strip,
Caroline Is.,
Cayman Is.,
Central African Republic,
Chad,
China Southeast,
Colombia,
Colorado,
Costa Rica,
Cuba,
Djibouti,
Dominican Republic,
East Himalaya,
Ecuador,
Egypt,
El Salvador,
Eritrea,
Ethiopia,
Florida,
French Guiana,
Gabon,
Galápagos,
Gambia,
Georgia,
Ghana,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf States,
Guyana,
Hainan,
Haiti,
Honduras,
Illinois,
India,
Indiana,
Iowa,
Iran,
Ivory Coast,
Jamaica,
Jawa,
Kansas,
Kentucky,
Kenya,
KwaZulu-Natal,
Laos,
Leeward Is.,
Lesser Sunda Is.,
Louisiana,
Madagascar,
Malawi,
Malaya,
Mali,
Marquesas,
Maryland,
Mauritania,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Mississippi,
Missouri,
Mozambique,
Myanmar,
Namibia,
Nebraska,
Nepal,
Netherlands Antilles,
Nevada,
New Guinea,
New Mexico,
New South Wales,
Nicaragua,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Oklahoma,
Oman,
Pakistan,
Palestine,
Panamá,
Paraguay,
Peru,
Philippines,
Puerto Rico,
Queensland,
Rwanda,
Saudi Arabia,
Senegal,
Sierra Leone,
Socotra,
Solomon Is.,
Somalia,
South Australia,
Sri Lanka,
Sudan,
Suriname,
Swaziland,
Tanzania,
Tennessee,
Texas,
Thailand,
Togo,
Trinidad-Tobago,
Turkey,
Turks-Caicos Is.,
Uganda,
Uruguay,
Utah,
Venezuela,
Venezuelan Antilles,
Vietnam,
West Himalaya,
West Virginia,
Western Australia,
Windward Is.,
Wyoming,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Chagos Archipelago,
Hawaii,
Line Is.,
Marianas,
Marshall Is.,
Nauru,
Ogasawara-shoto,
Phoenix Is.,
Samoa,
South China Sea,
Taiwan,
Wake I.