Native to:
Andaman Is.,
Angola,
Argentina Northeast,
Assam,
Bangladesh,
Belize,
Bismarck Archipelago,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Caroline Is.,
Chad,
China North-Central,
China South-Central,
China Southeast,
Christmas I.,
Cocos (Keeling) Is.,
Colombia,
Comoros,
Cook Is.,
Costa Rica,
Djibouti,
East Himalaya,
Ecuador,
Eritrea,
Ethiopia,
Fiji,
French Guiana,
Gambia,
Ghana,
Guatemala,
Guinea,
Guyana,
Hainan,
Hawaii,
Honduras,
India,
Ivory Coast,
Japan,
Jawa,
Kenya,
Korea,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Leeward Is.,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Maluku,
Manchuria,
Marianas,
Maryland,
Mauritania,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Southeast,
Mexico Southwest,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
Nicaragua,
Nicobar Is.,
Niger,
Nigeria,
Niue,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Pakistan,
Panamá,
Peru,
Philippines,
Queensland,
Réunion,
Samoa,
Senegal,
Seychelles,
Sierra Leone,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Tonga,
Trinidad-Tobago,
Tubuai Is.,
Uganda,
Uruguay,
Vanuatu,
Venezuela,
Vietnam,
Wallis-Futuna Is.,
West Himalaya,
Western Australia,
Windward Is.,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Aldabra,
Brazil West-Central,
Central American Pac,
Cuba,
Dominican Republic,
Guinea-Bissau,
Gulf of Guinea Is.,
Haiti,
Jamaica,
Rodrigues,
Saudi Arabia