Native to:
Angola,
Assam,
Bangladesh,
Benin,
Bismarck Archipelago,
Borneo,
Botswana,
Burkina,
Burundi,
Cambodia,
Cameroon,
Central African Republic,
Chad,
China South-Central,
China Southeast,
Colombia,
Congo,
Djibouti,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Ghana,
Guinea,
Hainan,
India,
Ivory Coast,
Jawa,
Kenya,
KwaZulu-Natal,
Laos,
Lesser Sunda Is.,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Mozambique,
Myanmar,
Nepal,
New Guinea,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Oman,
Pakistan,
Philippines,
Queensland,
Rwanda,
Saudi Arabia,
Socotra,
Somalia,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Uganda,
Vietnam,
West Himalaya,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Caroline Is.,
Fiji,
Niue,
Samoa