Hoff, C.C. (1945f). The pseudoscorpion subfamily Olpiinae. American Museum Novitates 1291: 1–30.
| Taxon | |
|---|---|
| Pachyolpium Beier, 1931 (Pseudoscorpiones: Hesperolpiidae) | 2–3, Pachyolpium |
| Pachyolpium aureum Hoff, 1945 (Pseudoscorpiones: Hesperolpiidae) | 4–6, figs 1–4, Pachyolpium aureum |
| Pachyolpium puertoricense Hoff, 1945 (Pseudoscorpiones: Hesperolpiidae) | 6–9, figs 5–8 (as Pachyolpium puertoricensis), Pachyolpium puertoricense |
| Pachyolpium confundens Hoff, 1945 (Pseudoscorpiones: Hesperolpiidae) | 9–11, figs 9–10, Pachyolpium confundens |
| Pachyolpium medium Hoff, 1945 (Pseudoscorpiones: Hesperolpiidae) | 11–15, figs 11–15, Pachyolpium medium |
| Neopachyolpium Hoff, 1945 (Pseudoscorpiones: Olpiidae) | 15, Neopachyolpium |
| Neopachyolpium longum Hoff, 1945 (Pseudoscorpiones: Olpiidae) | 15–19, figs 16–18, Neopachyolpium longum |
| Indolpium Hoff, 1945 (Pseudoscorpiones: Olpiidae) | 19, Indolpium |
| Novohorus Hoff, 1945 (Pseudoscorpiones: Olpiidae) | 19, Novohorus |
| Novohorus suffuscus Hoff, 1945 (Pseudoscorpiones: Olpiidae) | 19–23, figs 19–26, Novohorus suffuscus |
| Hoffhorus cinereus (Hoff, 1945) (Pseudoscorpiones: Olpiidae) | 23–26, figs 27–29, Novohorus cinereus |