Native to:
Afghanistan,
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Borneo,
Botswana,
Burkina,
Burundi,
Cambodia,
Cameroon,
Central African Republic,
Chad,
China North-Central,
China South-Central,
China Southeast,
Comoros,
East Himalaya,
Eritrea,
Ethiopia,
Florida,
Gabon,
Gambia,
Ghana,
Guinea-Bissau,
Gulf of Guinea Is.,
Hainan,
India,
Iran,
Ivory Coast,
Japan,
Kenya,
Korea,
KwaZulu-Natal,
Laos,
Madagascar,
Malawi,
Mali,
Manchuria,
Mauritania,
Mexico Northeast,
Mexico Southeast,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New South Wales,
Nicobar Is.,
Niger,
Nigeria,
North Carolina,
Northern Provinces,
Northern Territory,
Pakistan,
Queensland,
Rwanda,
Senegal,
Somalia,
South Australia,
Sri Lanka,
Sudan,
Taiwan,
Tanzania,
Tennessee,
Texas,
Thailand,
Togo,
Uganda,
Vietnam,
West Himalaya,
Western Australia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Alabama,
Brazil South,
Caroline Is.,
Ecuador,
Fiji,
Greece,
Guinea,
Jawa,
Lesser Sunda Is.,
Malaya,
Marianas,
Mauritius,
New Caledonia,
New Guinea,
Philippines,
Puerto Rico,
Rodrigues,
Réunion,
Samoa,
Society Is.,
Sulawesi,
Sumatera