Native to:
Aldabra,
Algeria,
Andaman Is.,
Angola,
Assam,
Bangladesh,
Borneo,
Botswana,
Burkina,
Cameroon,
Cape Provinces,
Cape Verde,
Caroline Is.,
Central African Republic,
Chad,
Chagos Archipelago,
China Southeast,
Cocos (Keeling) Is.,
Comoros,
Djibouti,
Egypt,
Eritrea,
Ethiopia,
Gilbert Is.,
Guinea,
Hainan,
Hawaii,
India,
Ivory Coast,
Japan,
Jawa,
Kazan-retto,
Kenya,
Laccadive Is.,
Lesser Sunda Is.,
Libya,
Line Is.,
Malaya,
Maldives,
Mali,
Maluku,
Marcus I.,
Marianas,
Marquesas,
Marshall Is.,
Mauritania,
Morocco,
Mozambique Channel Is.,
Myanmar,
Namibia,
Nansei-shoto,
New Guinea,
New South Wales,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Ogasawara-shoto,
Pakistan,
Philippines,
Queensland,
Saudi Arabia,
Senegal,
Seychelles,
Solomon Is.,
Somalia,
South Australia,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Taiwan,
Tanzania,
Uganda,
Wake I.,
Western Australia,
Western Sahara,
Yemen,
Zimbabwe
Introduced into:
Easter Is.,
Spain