- family: Gnaphosidae
- genus: Callilepis
- genus: Cesonia
- genus: Drassodes
- genus: Drassyllus
- species: Drassyllus aprilinus (Banks, 1904)
- species: Drassyllus creolus Chamberlin & Gertsch, 1940
- species: Drassyllus depressus (Emerton, 1890)
- species: Drassyllus dromeus Chamberlin, 1922
- species: Drassyllus eremitus Chamberlin, 1922
- species: Drassyllus eremophilus Chamberlin & Gertsch, 1940
- species: Drassyllus fallens Chamberlin, 1922
- species: Drassyllus frigidus (Banks, 1892)
- species: Drassyllus insularis (Banks, 1900)
- species: Drassyllus lamprus (Chamberlin, 1920)
- species: Drassyllus nannellus Chamberlin & Gertsch, 1940
- species: Drassyllus niger (Banks, 1896)
- species: Drassyllus novus (Banks, 1895)
- species: Drassyllus rufulus (Banks, 1892)
- species: Drassyllus saphes Chamberlin, 1936
- species: Drassyllus socius Chamberlin, 1922
- genus: Gnaphosa
- species: Gnaphosa antipola Chamberlin, 1933
- species: Gnaphosa borea Kulczynski, 1908
- species: Gnaphosa brumalis Thorell, 1875
- species: Gnaphosa californica Banks, 1904
- species: Gnaphosa clara (Keyserling, 1887)
- species: Gnaphosa fontinalis Keyserling, 1887
- species: Gnaphosa microps Holm, 1939
- species: Gnaphosa muscorum (L. Koch, 1866)
- species: Gnaphosa orites Chamberlin, 1922
- species: Gnaphosa parvula Banks, 1896
- species: Gnaphosa sericata (L. Koch, 1866)
- species: Gnaphosa snohomish Platnick & Shadab, 1975
- genus: Haplodrassus
- genus: Herpyllus
- genus: Litopyllus
- genus: Micaria
- species: Micaria aenea Thorell, 1871
- species: Micaria alpina L. Koch, 1872
- species: Micaria coloradensis Banks, 1896
- species: Micaria constricta Emerton, 1894
- species: Micaria elizabethae Gertsch, 1942
- species: Micaria emertoni Gertsch, 1935
- species: Micaria foxi Gertsch, 1933
- species: Micaria gertschi Barrows & Ivie, 1942
- species: Micaria idana Platnick & Shadab, 1988
- species: Micaria laticeps Emerton, 1909
- species: Micaria longipes Emerton, 1890
- species: Micaria longispina Emerton, 1911
- species: Micaria medica Platnick & Shadab, 1988
- species: Micaria mormon Gertsch, 1935
- species: Micaria porta Platnick & Shadab, 1988
- species: Micaria pulicaria (Sundevall, 1831)
- species: Micaria riggsi Gertsch, 1942
- species: Micaria rossica Thorell, 1875
- species: Micaria tripunctata Holm, 1978
- species: Micaria utahna Gertsch, 1933
- genus: Nodocion
- genus: Orodrassus
- genus: Parasyrisca
- genus: Scotophaeus
- genus: Sergiolus
- species: Sergiolus angustus (Banks, 1904)
- species: Sergiolus bicolor Banks, 1900
- species: Sergiolus capulatus (Walckenaer, 1837)
- species: Sergiolus columbianus (Emerton, 1917)
- species: Sergiolus decoratus Kaston, 1945
- species: Sergiolus iviei Platnick & Shadab, 1981
- species: Sergiolus montanus (Emerton, 1890)
- species: Sergiolus ocellatus (Walckenaer, 1837)
- species: Sergiolus tennesseensis Chamberlin, 1922
- species: Sergiolus unimaculatus Emerton, 1915
- genus: Sosticus
- genus: Urozelotes
- genus: Zelotes
- species: Zelotes duplex Chamberlin, 1922
- species: Zelotes exiguoides Platnick & Shadab, 1983
- species: Zelotes fratris Chamberlin, 1920
- species: Zelotes hentzi Barrows, 1945
- species: Zelotes josephine Platnick & Shadab, 1983
- species: Zelotes laccus (Barrows, 1919)
- species: Zelotes lasalanus Chamberlin, 1928
- species: Zelotes pullus (Bryant, 1936)
- species: Zelotes puritanus Chamberlin, 1922
- species: Zelotes rainier Platnick & Shadab, 1983
- species: Zelotes sula Lowrie & Gertsch, 1955
- species: Zelotes tuobus Chamberlin, 1919