| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Planaxis acutus | Menke, 1851 | synonym | No | junior synonym |
original combination |
| Planaxis nigritella | Forbes, 1872 | synonym | No | junior synonym |
original combination |
| Planaxis obsoletus | Menke, 1851 | accepted name | Yes | senior synonym |
original combination |