| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Acar asperula | Dall, 1881 | synonym | No | senior synonym |
original combination |
| Acar hawaiensis | Dall, Bartsch & Rehder, 1938 | synonym | No | junior synonym |
original combination |
| Arca asperula | (Dall, 1881) | synonym | No | senior synonym |
new combination |
| Bentharca asperula | (Dall, 1881) | accepted name | Yes | senior synonym |
new combination |
| Bentharca hawaiensis | Dall, Bartsch & Rehder, 1938 | synonym | No | junior synonym |
original combination |