Native to:
Albania,
Aldabra,
Algeria,
Angola,
Argentina Northeast,
Argentina Northwest,
Arkansas,
Assam,
Bangladesh,
Benin,
Bolivia,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Bulgaria,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Central African Repu,
Chad,
Chile Central,
China South-Central,
China Southeast,
Colombia,
Comoros,
Congo,
Costa Rica,
Cuba,
Cyprus,
Djibouti,
Dominican Republic,
East Aegean Is.,
East Himalaya,
Ecuador,
Egypt,
Eritrea,
Ethiopia,
Free State,
French Guiana,
Gabon,
Gambia,
Ghana,
Greece,
Guatemala,
Guinea,
Guinea-Bissau,
Guyana,
Hainan,
Haiti,
Honduras,
India,
Iran,
Iraq,
Italy,
Ivory Coast,
Jamaica,
Jawa,
Kenya,
Kriti,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Liberia,
Louisiana,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Mauritania,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nepal,
New Guinea,
New South Wales,
Nicaragua,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Oklahoma,
Oman,
Pakistan,
Palestine,
Paraguay,
Philippines,
Portugal,
Queensland,
Romania,
Rwanda,
Sardegna,
Saudi Arabia,
Senegal,
Seychelles,
Sicilia,
Sierra Leone,
Socotra,
Somalia,
South Australia,
South China Sea,
Spain,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Texas,
Thailand,
Togo,
Transcaucasus,
Tunisia,
Turkey,
Uganda,
Uruguay,
Venezuela,
Victoria,
Vietnam,
Western Australia,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Arizona,
Baleares,
California,
Gulf States,
Kansas,
Mauritius,
Missouri,
Réunion