Native to:
Angola,
Argentina Northeast,
Assam,
Bangladesh,
Benin,
Borneo,
Botswana,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Burkina,
Burundi,
Cambodia,
Cameroon,
Caprivi Strip,
Central African Repu,
Chad,
China North-Central,
China South-Central,
China Southeast,
Congo,
Eritrea,
Ethiopia,
Gabon,
Gambia,
Ghana,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Hainan,
India,
Ivory Coast,
Japan,
Jawa,
Kenya,
Khabarovsk,
Korea,
KwaZulu-Natal,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Manchuria,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Guinea,
New South Wales,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Paraguay,
Philippines,
Primorye,
Queensland,
Rwanda,
Senegal,
Sierra Leone,
Solomon Is.,
Somalia,
South Australia,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Uganda,
Victoria,
Vietnam,
Western Australia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
California,
Egypt,
Iraq,
Italy,
Louisiana,
New Caledonia,
New Zealand North,
New Zealand South