Native to:
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Bismarck Archipelago,
Borneo,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Caroline Is.,
Central African Republic,
Chad,
China South-Central,
China Southeast,
Comoros,
Congo,
Cook Is.,
Djibouti,
DR Congo,
East Himalaya,
Eritrea,
Eswatini,
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-South Sudan,
Sulawesi,
Sumatera,
Tanzania,
Thailand,
Tibet,
Togo,
Tonga,
Uganda,
Vietnam,
West Himalaya,
Yemen,
Zambia,
Zimbabwe
Introduced into:
Germany,
Hawaii,
Mauritius,
Réunion