Taxa included

Holmberg, E.L. (1876). Aracnidos Argentinos. Anales de Agricultura de la República Argentina 4: 1–28.

Taxon
Cheiridium museorum (Leach, 1817) (Pseudoscorpiones: Cheiridiidae) 28, Chelifer museorum
Chelifer excentricus Holmberg, 1874 (Pseudoscorpiones: Cheliferidae) 28, Chelifer excentricus
Chelifer timidus Holmberg, 1876 (Pseudoscorpiones: Cheliferidae) 28, Chelifer timidus