- family: Amaurobiidae
- genus: Amaurobius
- species: Amaurobius agastus (Chamberlin, 1947)
- species: Amaurobius barbaricus Leech, 1972
- species: Amaurobius borealis Emerton, 1909
- species: Amaurobius dorotheae (Chamberlin, 1947)
- species: Amaurobius ferox (Walckenaer, 1830)
- species: Amaurobius hagiellus (Chamberlin, 1947)
- species: Amaurobius heathi (Chamberlin, 1947)
- species: Amaurobius latescens (Chamberlin, 1919)
- species: Amaurobius mathetes (Chamberlin, 1947)
- species: Amaurobius mephisto (Chamberlin, 1947)
- species: Amaurobius similis (Blackwall, 1861)
- genus: Arctobius
- genus: Callobius Chamberlin, 1947
- species: Callobius angelus (Chamberlin & Ivie, 1947)
- species: Callobius arizonicus (Chamberlin & Ivie, 1947)
- species: Callobius bennetti (Blackwall, 1846)
- species: Callobius canada (Chamberlin & Ivie, 1947)
- species: Callobius deces (Chamberlin & Ivie, 1947)
- species: Callobius enus (Chamberlin & Ivie, 1947)
- species: Callobius kamelus (Chamberlin & Ivie, 1947)
- species: Callobius nevadensis (Simon, 1884)
- species: Callobius nomeus (Chamberlin, 1919)
- species: Callobius olympus (Chamberlin & Ivie, 1947)
- species: Callobius pictus (Simon, 1884)
- species: Callobius severus (Simon, 1884)
- species: Callobius tamarus (Chamberlin & Ivie, 1947)
- genus: Cybaeopsis
- genus: Pimus Chamberlin, 1947
- family: Titanoecidae