[n = 7]
| Year / Period | From | To | Established | Ecol. effects |
|---|---|---|---|---|
| unknown | Unknown | Czechoslovakia | probably not established | |
| unknown | Unknown | California, Florida, Maryland | established | probably some |
| 1960 - 1965 | China | Uzbekistan | established | |
| 1923 | Korea | Japan | established | some |
| 1949 | Unknown | USSR | probably not established | |
| 1956 | Unknown | Czech Republic | unknown | unknown |
| 1996 | Unknown | Germany | unknown | unknown |