Native to:
Afghanistan,
Alabama,
Alberta,
Andaman Is.,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Aruba,
Assam,
Bahamas,
Bangladesh,
Benin,
Bolivia,
Botswana,
Brazil North,
Brazil Northeast,
Brazil West-Central,
British Columbia,
Burkina,
Burundi,
California,
Cape Provinces,
Cape Verde,
Central African Repu,
Chad,
Chile Central,
China South-Central,
Colombia,
Colorado,
Connecticut,
Cuba,
Delaware,
District of Columbia,
East Himalaya,
Ecuador,
Eritrea,
Ethiopia,
Florida,
Free State,
Gabon,
Galápagos,
Gambia,
Georgia,
Ghana,
Guinea,
Guinea-Bissau,
Haiti,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Ivory Coast,
Kansas,
Kentucky,
Kenya,
KwaZulu-Natal,
Leeward Is.,
Lesser Sunda Is.,
Louisiana,
Madagascar,
Maine,
Malawi,
Mali,
Manitoba,
Maryland,
Massachusetts,
Mauritania,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Mozambique,
Myanmar,
Namibia,
Nebraska,
Nepal,
Netherlands Antilles,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
Niger,
Nigeria,
North Carolina,
North Dakota,
Northern Provinces,
Northern Territory,
Ohio,
Oklahoma,
Oman,
Ontario,
Oregon,
Pakistan,
Paraguay,
Pennsylvania,
Peru,
Puerto Rico,
Queensland,
Québec,
Rhode I.,
Rwanda,
Saudi Arabia,
Senegal,
Socotra,
Somalia,
South Australia,
South Carolina,
South Dakota,
Sri Lanka,
Sudan,
Swaziland,
Tanzania,
Tennessee,
Texas,
Thailand,
Tibet,
Togo,
Turks-Caicos Is.,
Uganda,
Uruguay,
Utah,
Venezuela,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Italy