Species list for Niarchos
| Taxon | Author | Action | Last updated |
|---|---|---|---|
| 1. Niarchos baehrae | Platnick & Dupérré, 2010 | Catalog | 2017-12-29 |
| 2. Niarchos barragani | Platnick & Dupérré, 2010 | Catalog | - - |
| 3. Niarchos bonaldoi | Platnick & Dupérré, 2010 | Catalog | - - |
| 4. Niarchos cotopaxi * | Platnick & Dupérré, 2010 | Catalog | - - |
| 5. Niarchos elicioi | Platnick & Dupérré, 2010 | Catalog | - - |
| 6. Niarchos facundoi | Platnick & Dupérré, 2010 | Catalog | - - |
| 7. Niarchos florezi | Platnick & Dupérré, 2010 | Catalog | - - |
| 8. Niarchos foreroi | Platnick & Dupérré, 2010 | Catalog | - - |
| 9. Niarchos grismadoi | Platnick & Dupérré, 2010 | Catalog | - - |
| 10. Niarchos keili | Platnick & Dupérré, 2010 | Catalog | - - |
| 11. Niarchos ligiae | Platnick & Dupérré, 2010 | Catalog | - - |
| 12. Niarchos loja | Platnick & Dupérré, 2010 | Catalog | - - |
| 13. Niarchos matiasi | Platnick & Dupérré, 2010 | Catalog | - - |
| 14. Niarchos michaliki | Platnick & Dupérré, 2010 | Catalog | - - |
| 15. Niarchos normani | Dupérré & Tapia, 2017 | Catalog | 2017-12-29 |
| 16. Niarchos palenque | Platnick & Dupérré, 2010 | Catalog | - - |
| 17. Niarchos ramirezi | Platnick & Dupérré, 2010 | Catalog | - - |
| 18. Niarchos rheimsae | Platnick & Dupérré, 2010 | Catalog | - - |
| 19. Niarchos santosi | Platnick & Dupérré, 2010 | Catalog | - - |
| 20. Niarchos scutatus | Platnick & Dupérré, 2010 | Catalog | - - |
| 21. Niarchos tapiai | Platnick & Dupérré, 2010 | Catalog | - - |
| 22. Niarchos vegai | Platnick & Dupérré, 2010 | Catalog | - - |
| 23. Niarchos wygodzinskyi | Platnick & Dupérré, 2010 | Catalog | - - |