Native to:
Afghanistan,
Algeria,
Andaman Is.,
Assam,
Bangladesh,
Bismarck Archipelago,
Burkina,
Cambodia,
Cameroon,
Central African Repu,
Chad,
China North-Central,
China South-Central,
China Southeast,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Ghana,
Gulf States,
Hainan,
India,
Japan,
Jawa,
Kazakhstan,
Kenya,
Kirgizstan,
Korea,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Libya,
Malawi,
Malaya,
Maluku,
Morocco,
Myanmar,
Nansei-shoto,
Nepal,
New Guinea,
Nicobar Is.,
Niger,
Nigeria,
Northern Territory,
Oman,
Pakistan,
Palestine,
Philippines,
Queensland,
Saudi Arabia,
Seychelles,
Sicilia,
Sinai,
Solomon Is.,
Somalia,
Sri Lanka,
Sudan,
Sumatera,
Tadzhikistan,
Taiwan,
Tanzania,
Thailand,
Tibet,
Togo,
Tunisia,
Turkmenistan,
Uganda,
Uzbekistan,
Vietnam,
West Himalaya,
Xinjiang,
Yemen
Introduced into:
Caroline Is.,
Christmas I.,
Costa Rica,
Cuba,
Fiji,
Florida,
Greece,
Hawaii,
Italy,
Kriti,
Madagascar,
Marianas,
Mauritius,
New Caledonia,
Panamá,
Puerto Rico,
Réunion,
Sardegna,
Society Is.,
Trinidad-Tobago,
Vanuatu