| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Spiophanes duplex | (Chamberlin, 1919) | accepted name | Yes | senior synonym |
new combination |
| Spiophanes missionensis | Hartman, 1941 | synonym | No | junior synonym |
original combination |
| Spiophanes soderstromi | Hartman, 1953 | synonym | No | junior synonym |
original combination |
| ! Spiophanes soederstromi | Hartman, 1953 | synonym | No | junior synonym |
original combination |