Native to:
Afghanistan,
Algeria,
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Borneo,
Botswana,
Brazil Northeast,
Brazil Southeast,
Brazil West-Central,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Cape Verde,
Caprivi Strip,
Central African Repu,
Chad,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Cyprus,
Djibouti,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Free State,
Gambia,
Ghana,
Greece,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Hainan,
India,
Inner Mongolia,
Iran,
Iraq,
Ivory Coast,
Jawa,
Kenya,
Korea,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Libya,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Manchuria,
Marquesas,
Mauritania,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nepal,
New Guinea,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Palestine,
Paraguay,
Philippines,
Queensland,
Rwanda,
Saudi Arabia,
Senegal,
Sicilia,
Sierra Leone,
Sinai,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
Spain,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Tanzania,
Thailand,
Tibet,
Togo,
Tunisia,
Turkey,
Uganda,
Venezuela,
Vietnam,
West Himalaya,
Western Australia,
Western Sahara,
Xinjiang,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Alabama,
Arizona,
Aruba,
Bahamas,
Belize,
Brazil North,
Bulgaria,
California,
Cayman Is.,
Chagos Archipelago,
Comoros,
Costa Rica,
Cuba,
Dominican Republic,
El Salvador,
Fiji,
Florida,
France,
Georgia,
Haiti,
Honduras,
Italy,
Jamaica,
Japan,
Kazakhstan,
Kirgizstan,
Kriti,
Laccadive Is.,
Leeward Is.,
Louisiana,
Maldives,
Marianas,
Mauritius,
Mexico Southeast,
Netherlands Antilles,
Puerto Rico,
Rodrigues,
Romania,
Réunion,
Southwest Caribbean,
Tadzhikistan,
Taiwan,
Texas,
Trinidad-Tobago,
Turkey-in-Europe,
Turkmenistan,
Utah,
Uzbekistan,
Venezuelan Antilles,
Windward Is.,
Yugoslavia