Native to:
Andaman Is.,
Angola,
Assam,
Bangladesh,
Bismarck Archipelago,
Borneo,
Botswana,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Caroline Is.,
Central African Republic,
Chad,
Chagos Archipelago,
China South-Central,
China Southeast,
Comoros,
Cook Is.,
East Himalaya,
Easter Is.,
Ethiopia,
Fiji,
Gabon,
Gambia,
Guinea,
Gulf of Guinea Is.,
Hainan,
Hawaii,
India,
Ivory Coast,
Japan,
Jawa,
Kenya,
Korea,
KwaZulu-Natal,
Laos,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Maldives,
Maluku,
Marianas,
Marshall Is.,
Mauritius,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
New Zealand North,
Niger,
Northern Provinces,
Northern Territory,
Philippines,
Queensland,
Rwanda,
Réunion,
Samoa,
Senegal,
Society Is.,
Solomon Is.,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Tonga,
Tubuai Is.,
Uganda,
Vanuatu,
Victoria,
Vietnam,
Western Australia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Algeria,
Morocco