[n = 6]
| Year / Period | From | To | Established | Ecol. effects |
|---|---|---|---|---|
| 1972 - 1973 | Japan | Chile | probably established | |
| 1929 | Japan | United States of America | not established | unknown |
| 1929 | Korea | United States of America | not established | unknown |
| 1929 | Russian Fed | United States of America | not established | unknown |
| 1965 | Japan | Canada | not established | |
| 1996 | Japan | China | unknown | no data |