Taxa included

Milne, L. & Milne, M. (1980). The Audubon Society field guide to North American insects and spiders. A.A. Knopf, New York.

Taxon
Pseudoscorpiones de Geer, 1778 917, (as Pseudoscorpionida), Pseudoscorpiones de Geer
Chernetidae Menge, 1855 (Pseudoscorpiones) 918, Chernetidae