| Invasion information | ||
| Range in Japan | Established on Hachijojima Is. (Izu Islands). |
|
| Origin | Unknown. | |
| Date | Although the first record on Hachijojima was in Jul 1994, this species may had already established earlier. | |
| Route | Unknown. | |
| Impact | Unknown. | |
| Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
| Introduced range in other countries | None. | |
| Reference | Notes |
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