Species list for Piabuna
| Taxon | Author | Action | Last updated |
|---|---|---|---|
| 1. Piabuna brevispina | Chamberlin & Ivie, 1935 | Catalog | - - |
| 2. Piabuna longispina | Chamberlin & Ivie, 1935 | Catalog | - - |
| 3. Piabuna nanna * | Chamberlin & Ivie, 1933 | Catalog | - - |
| 4. Piabuna pallida | Chamberlin & Ivie, 1935 | Catalog | - - |
| 5. Piabuna reclusa | Gertsch & Davis, 1940 | Catalog | - - |
| 6. Piabuna xerophila | Chamberlin & Ivie, 1935 | Catalog | - - |