Taxa included

Hoff, C.C. (1945e). New Neotropical Diplosphyronida (Chelonethida). American Museum Novitates 1288: 1–17.

Taxon
Ideobisium balzanii With, 1905 (Pseudoscorpiones: Syarinidae) 1, Ideobisium balzanii
Ideoblothrus insularum (Hoff, 1945) (Pseudoscorpiones: Syarinidae) 1–4, figs 1–5, Pachychitra insularum
Pachychitra Chamberlin, 1938 (Pseudoscorpiones: Syarinidae) 1, Pachychitra
Menthus mexicanus Hoff, 1945 (Pseudoscorpiones: Menthidae) 4–7, figs 6–7, Menthus mexicanus
Apolpium ecuadorense Hoff, 1945 (Pseudoscorpiones: Hesperolpiidae) 7–10, figs 8–10 (as Apolpium ecuadorensis [sic]), Apolpium ecuadorense
Apolpium parvum Hoff, 1945 (Pseudoscorpiones: Hesperolpiidae) 10–12, figs 11–14, Apolpium parvum
Pachyolpium adiposum Hoff, 1945 (Pseudoscorpiones: Hesperolpiidae) 12–15, figs 15–16, Pachyolpium adiposum
Indolpium funebrum (Redikorzev, 1938) (Pseudoscorpiones: Olpiidae) 19, Indolpium funebrum (Redikorzev)