Staphylinidae Latreille, 1802
Trichiusa atra Casey, 1906
Trichiusa columbica Casey, 1911
Trichiusa compacta Casey, 1893
Trichiusa convergens Casey, 1906
Trichiusa discreta Casey, 1906
Trichiusa hirsuta Casey, 1906
Trichiusa immigrata Lohse, 1984
Trichiusa monticola Casey, 1906
Trichiusa parviceps Casey, 1906
Trichiusa parvicollis Casey, 1893
Trichiusa pilosa Casey, 1893
Trichiusa polita Casey, 1906
Trichiusa postica Casey, 1906
Trichiusa rigida Casey, 1906
Trichiusa robustula Casey, 1893
Trichiusa setigera Casey, 1893
Trichiusa transversa Casey, 1906
Trichiusa ursina Notman, 1920
Trichiusa varicolor Casey, 1906
Trichiusa virginica Casey, 1906