Native to:
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Bismarck Archipelago,
Borneo,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Caroline Is.,
Central African Repu,
Chad,
China South-Central,
China Southeast,
Comoros,
Congo,
Cook Is.,
Djibouti,
East Himalaya,
Eritrea,
Ethiopia,
Gabon,
Gambia,
Ghana,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Hainan,
India,
Ivory Coast,
Japan,
Jawa,
Kazan-retto,
Kenya,
KwaZulu-Natal,
Laos,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Marianas,
Marquesas,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Guinea,
Nicobar Is.,
Nigeria,
Niue,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Oman,
Philippines,
Queensland,
Rwanda,
Samoa,
Santa Cruz Is.,
Saudi Arabia,
Senegal,
Seychelles,
Sierra Leone,
Solomon Is.,
Somalia,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Tanzania,
Thailand,
Tibet,
Togo,
Tonga,
Uganda,
Vietnam,
West Himalaya,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Hawaii,
Mauritius,
Réunion