| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Oithona aruensis | Früchtl, 1923 | accepted name | Yes | senior synonym |
original combination |
| Oithona brevicornis aruensis | Früchtl, 1923 | synonym | No | senior synonym |
change in rank |
| Oithona brevicornis minor | Nishida, Tanaka & Omori, 1977 | synonym | No | junior synonym |
original combination |