Native to:
Afghanistan,
Albania,
Algeria,
Andaman Is.,
Angola,
Assam,
Austria,
Bangladesh,
Benin,
Bismarck Archipelago,
Borneo,
Botswana,
Bulgaria,
Burkina,
Cambodia,
Cameroon,
Cape Provinces,
Caprivi Strip,
Caroline Is.,
Central African Republic,
Chad,
China South-Central,
China Southeast,
Congo,
Cook Is.,
Cuba,
Cyprus,
Czechoslovakia,
Djibouti,
East Aegean Is.,
East Himalaya,
Eritrea,
Ethiopia,
Fiji,
Florida,
France,
Free State,
Gambia,
Germany,
Ghana,
Greece,
Guinea,
Guinea-Bissau,
Gulf States,
Hainan,
Hungary,
India,
Iran,
Iraq,
Italy,
Ivory Coast,
Jawa,
Kenya,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Maluku,
Marianas,
Marquesas,
Marshall Is.,
Mauritania,
Mauritius,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nauru,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
Niger,
Nigeria,
Niue,
North Carolina,
North Caucasus,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Oman,
Pakistan,
Palestine,
Philippines,
Queensland,
Rodrigues,
Romania,
Rwanda,
Samoa,
Saudi Arabia,
Senegal,
Seychelles,
Sierra Leone,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
South Australia,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Switzerland,
Taiwan,
Tanzania,
Texas,
Thailand,
Tibet,
Togo,
Tonga,
Transcaucasus,
Tuamotu,
Tubuai Is.,
Turkey,
Turkey-in-Europe,
Uganda,
Ukraine,
Vanuatu,
Victoria,
Vietnam,
Wallis-Futuna Is.,
West Himalaya,
Western Australia,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Argentina Northeast,
Argentina Northwest,
Belize,
Brazil Northeast,
Christmas I.,
Cocos (Keeling) Is.,
Colombia,
Comoros,
Costa Rica,
Dominican Republic,
El Salvador,
Equatorial Guinea,
French Guiana,
Gabon,
Gulf of Guinea Is.,
Guyana,
Haiti,
Hawaii,
Honduras,
Jamaica,
Kazan-retto,
Leeward Is.,
Liberia,
Louisiana,
Mexico Southeast,
Mexico Southwest,
Nicobar Is.,
Panamá,
Paraguay,
Puerto Rico,
Réunion,
St.Helena,
Suriname,
Tokelau-Manihiki,
Trinidad-Tobago,
Venezuela,
Windward Is.