[n = 40]
| Year / Period | From | To | Established | Ecol. effects |
|---|---|---|---|---|
| unknown | unknown | Uzbekistan (Syr Darya basin) | established | probably none |
| unknown | Russia | Armenia | established | |
| unknown | Unknown | Chile | unknown | |
| unknown | Unknown | France | not established | |
| unknown | Unknown | French Polynesia | unknown | |
| unknown | unknown | French Polynesia | unknown | unknown |
| unknown | USA | Côte d'Ivoire | unknown | |
| unknown | Unknown | Russia | established | |
| unknown | Unknown | Spain | probably established | |
| unknown | Unknown | Ukraine (former USSR) | not established | |
| 1954 - 1955 | USA | Dominican Republic | unknown | |
| 1985 - 1989 | USA | India | unknown | |
| 1975 - 1976 | USA | Taiwan | probably established | |
| 1938 | USA | Puerto Rico | established | |
| 1953 | Continental USA | Hawaii | established | |
| 1966 | USA | Guam | not established | |
| 1968 | USA | UK | probably established | unknown |
| 1968 | Unknown | Belgium | not established | unknown |
| 1970 | USA | Nigeria | unknown | |
| 1971 | USA | Japan | established | unknown |
| 1971 | USA | Brazil | unknown | |
| 1971 | USA | Yugoslavia (Serbia/Montenegro) | not established | |
| 1972 | USA | Korea | unknown | |
| 1974 | USA | Philippines | established | probably some |
| 1975 | Unknown | Bulgaria | established | |
| 1975 | Unknown | Hungary | not established | unknown |
| 1975 | USA | Cyprus | probably established | |
| 1976 | USA | Italy | established | unknown |
| 1978 | USA | Mexico | established | some |
| 1978 | Former USSR | Romania | probably not established | probably none |
| 1979 | Mexico | Cuba | unknown | |
| 1979 | Unknown | Pripyat | established | no data |
| 1981 | USA | Panama | unknown | |
| 1982 | USA | Egypt | not established | |
| 1984 | USA | China | unknown | probably none |
| 1985 | USA | Czech Republic | probably established | no data |
| 1985 | USA | Slovakia | probably established | |
| 1986 | USA | Indonesia | not established | |
| 1989 | USA | Thailand | not established | unknown |
| 1989 | USA | Turkey | not established | none |