Native to:
Afghanistan,
Alabama,
Aldabra,
Angola,
Arizona,
Assam,
Bahamas,
Bangladesh,
Belize,
Benin,
Bismarck Archipelago,
Bolivia,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Cape Verde,
Central African Repu,
Chad,
China South-Central,
China Southeast,
Colombia,
Comoros,
Congo,
Costa Rica,
Cuba,
Dominican Republic,
East Himalaya,
Ecuador,
El Salvador,
Eritrea,
Ethiopia,
Florida,
Free State,
French Guiana,
Gambia,
Ghana,
Guatemala,
Guinea,
Guinea-Bissau,
Guyana,
Hainan,
Haiti,
India,
Iran,
Ivory Coast,
Jamaica,
Jawa,
Kenya,
KwaZulu-Natal,
Laos,
Leeward Is.,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Maluku,
Marianas,
Mauritania,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Guinea,
New Mexico,
New South Wales,
Nicaragua,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Pakistan,
Panamá,
Paraguay,
Peru,
Philippines,
Puerto Rico,
Qinghai,
Queensland,
Rwanda,
Saudi Arabia,
Senegal,
Socotra,
Somalia,
South Australia,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Taiwan,
Tanzania,
Texas,
Thailand,
Tibet,
Togo,
Trinidad-Tobago,
Uganda,
Venezuela,
Vietnam,
West Himalaya,
Western Australia,
Windward Is.,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Fiji,
Hawaii,
New Caledonia,
Réunion,
Vanuatu