Coddington, J.A., Larcher, S.F. & Cokendolpher, J.C. (1990). The systematic status of Arachnida, exclusive of Acari, in North America north of Mexico. In: Kosztarab, M. and Schaefer, C.W. (ed.) Systematics of the North American insects and arachnids: status and needs Virginia Polytechnic Institute and State University, Blacksburg: 5–20.
| Taxon | |
|---|---|
| Eukoenenia florenciae (Rucker, 1903) (Palpigradi: Eukoeneniidae) | 11, Eukoenenia florenciae (Rucker) |
| Prokoenenia californica Silvestri, 1913 (Palpigradi: Prokoeneniidae) | 11, Prokoenenia californica |
| Prokoenenia wheeleri (Rucker, 1901) (Palpigradi: Prokoeneniidae) | 11, Prokoenenia wheeleri (Rucker) |