Anthrobia acuminata (Emerton, 1913) (<= Sciastes acuminatus) Anthrobia monmouthia Tellkampf, 1844 Aphileta microtarsa (Emerton, 1882) Arcterigone pilifrons (Koch, 1879) Baryphyma trifrons (O. P.-Cambridge, 1863) (<= Minyrioloides trifons) Blestia sarcocuon (Crosby & Bishop, 1927) Carorita limnaea (Crosby & Bishop, 1927) Ceraticelus alticeps (Fox, 1891) Ceraticelus aremisiae Prentice & Redak, 2009 Ceraticelus atriceps (O. P.-Cambridge, 1874) Ceraticelus bryantae Kaston, 1945 Ceraticelus bulbosus (Emerton, 1882) Ceraticelus carinatus (Emerton, 1911) Ceraticelus crassiceps Chamberlin & Ivie, 1939 Ceraticelus emertoni (O.P.-Cambridge, 1874) Ceraticelus fastidiosus Crosby & Bishop, 1925 Ceraticelus fissiceps (O.P.-Cambridge, 1874) Ceraticelus laetabilis (O.P.-Cambridge, 1874) Ceraticelus laetus (O.P.-Cambridge, 1874) Ceraticelus laticeps (Emerton, 1894) Ceraticelus limnologicus Crosby & Bishop, 1925 Ceraticelus micropalpis (Emerton, 1882) Ceraticelus minutus (Emerton, 1882) Ceraticelus paludigenus Crosby & Bishop, 1925 Ceraticelus paschalis Crosby & Bishop, 1925 Ceraticelus phylax Ivie & Barrows, 1935 Ceraticelus pygmaeus (Emerton, 1882) Ceraticelus rowensis Levi & Levi, 1955 Ceraticelus savannus Chamberlin & Ivie, 1944 Ceraticelus silus Dondale, 1958 Ceraticelus similis (Banks, 1892) Ceraticelus tibialis (Fox, 1891) Ceratinella acerea Chamberlin & Ivie, 1933 Ceratinella alaskae Chamberlin & Ivie, 1947 Ceratinella brunnea Emerton, 1882 Ceratinella ornatula (Crosby & Bishop, 1925) Ceratinella parvula (Fox, 1891) Ceratinops annulipes (Banks, 1892) Ceratinops crenatus (Emerton, 1882) Ceratinops inflatus (Emerton, 1923) Ceratinops latus (Emerton, 1882) Ceratinops littoralis (Emerton, 1913) Ceratinops rugosus (Emerton, 1909) Ceratinopsidis formosa (Banks, 1892) Ceratinopsis auriculata Emerton, 1909 Ceratinopsis interpres (O.P.-Cambridge, 1874) Ceratinopsis labradorensis Emerton, 1925 Ceratinopsis nigriceps Emerton, 1882 Cheniseo fabulosa Bishop & Crosby, 1935 Cheniseo sphagnicultor Bishop & Crosby, 1935 (<=Acartauchenius sphagnicultor) Cnephalocotes obscurus (Blackwall, 1834) Collinsia clypiella (Chamberlin, 1920)
Collinsia holmgreni (Thorell, 1871) (<= Halorates holmgreni) Collinsia ksenia (Crosby & Bishop, 1928) (<= Halorates ksenius) Collinsia oxypaederotipus (Crosby, 1905) (<=Halorates oxypaederotipus) Collinsia perplexa (Keyserling, 1886) Collinsia pertinens (Pickard-Cambridge, 1875) Collinsia plumosa (Emerton, 1882) (<= Halorates plumosa) Collinsia spetsbergensis (Thorell, 1871) Coloncus siou Chamberlin, 1949 Coreorgonal monoceros (Keyserling, 1884) Dicymbium elongatum (Emerton, 1882) Diplocentria bidentata (Emerton) 1882 Diplocentria perplexa (Chamberlin & Ivie, 1939) Diplocentria rectangulata (Emerton) 1915 Diplocephalus barbiger (Roewer, 1955) Diplocephalus cristatus (Blackwall) 1833 Diplocephalus subrostratus (O.P.-Cambridge, 1873) Disembolus alpha (Chamberlin, 1948) Disembolus anguineus Millidge, 1981 Disembolus bairdi Edwards, 1999 Disembolus corneliae (Chamberlin & Ivie, 1944) Dismodicus alticeps Chamberlin & Ivie 1947 Dismodicus bifrons (Blackwall, 1841) Dismodicus decemoculatus (Emerton, 1882) Entelecara sombra (Chamberlin & Ivie) 1947 Epiceraticelus fluvialis Crosby & Bishop, 1930 Eridantes erigonoides (Emerton, 1882) Eridantes utibilis Crosby & Bishop, 1933 Erigone aletris Crosby & Bishop, 1928 Erigone arctica (White, 1852) Erigone arctophylacis Erigone atra Blackwall, 1833 Erigone autumnalis Emerton, 1882 Erigone barrowsi Crosby & Bishop, 1928 Erigone blaesa Crosby & Bishop, 1928 Erigone canthognatha Chamberlin & Ivie, 1935 Erigone capra Simon, 1884 (=> Erigone dentigera, disputed) Erigone cristatopalpus Simon, 1884 Erigone dentigera O.P.-Cambridge, 1874 Erigone dentosa O.P.-Cambridge, 1894 Erigone ephala Crosby & Bishop, 1928 Erigone hypenema Crosby & Bishop, 1928 Erigone psychrophila Thorell, 1871 Erigone tirolensis Koch, 1872 Erigone whymperi O. Pickard-Cambridge, 1877 Eulaira arctoa Holm, 1960 Eulaira chelata Chamberlin & Ivie, 1939 Eulaira dela Chamberlin & Ivie, 1933 Eulaira obscura Chamberlin & Ivie, 1945 Floricomus plumalis (Crosby, 1905) Floricomus rostratus (Emerton, 1882) Floricomus tallulae Chamberlin & Ivie, 1944 Frederickus coylei Paquin et al., 2008
Frederickus wilburi (Levi & Levi, 1955) Glyphesis idahoanus (Chamberlin, 1948) Glyphesis scopulifer (Emerton, 1882) Gnathonarium dentatum (Wider, 1834) Gnathonarium suppositum (Kulczyn'ski, 1885). Gnathonarium taczanowskii (O. P.-Cambridge, 1873) Gnathonaroides pedalis (Emerton, 1923) Gonatium crassipalpum Bryant, 1933 Goneatra platyrhinus Crosby & Bishop, 1927 Grammonota angusta Dondale 1959 Grammonota capitata Emerton, 1924 Grammonota coloradensis Dondale, 1959 Grammonota gentilis Banks, 1898 Grammonota gigas (Banks, 1896) Grammonota inornata Emerton, 1882 Grammonota inusiata Bishop & Crosby, 1933 Grammonota kincaidi (Banks, 1906) Grammonota maculata Banks, 1896 Grammonota maritima Emerton, 1925 Grammonota ornata (O.P.-Cambridge, 1875) Grammonota pallipes Banks, 1895 Grammonota pictilis (O.P.-Cambridge, 1875) Grammonota subarctica Dondale, 1959 Grammonota texana Banks, 1899 Grammonota trivittata Banks, 1895 Grammonota vittata Barrows, 1919 Hilaira canaliculatа (Emerton, 1915) (<=Soudinus canaliculatus) Hilaira herniosa (Thorell, 1875) Hilaira vexatrix (O.P.-Cambridge, 1877) Horcotes quadricristatus (Emerton, 1882) Horcotes strandi (Sytshevskaja, 1935) Hybauchenidium aquilionare L. Koch, 1879 Hybauchenidium cymbadentatum (Crosby & Bishop, 1935) Hybauchenidium gibbosum (Sørensen) 1898 Hypomma marxi (Keyserling, 1886) Hypselistes florens (O.P.-Cambridge, 1875) Hypselistes jacksoni (Pickard-Cambridge, 1902) Idionella formosa (Banks, 1892) Idionella nesiotes (Crosby, 1924) Idionella rugosa (Crosby, 1905) Idionella sclerata (Ivie & Barrows, 1935) (<= Grammonota sclerata) Idionella tugana (Chamberlin, 1948) Islandiana coconino Ivie, 1965 Islandiana cristata Eskov, 1987 Islandiana falsifica (Keyserling, 1886) Islandiana flaveola (Banks, 1892) Islandiana holmi Ivie, 1965 Islandiana lasalana (Chamberlin & Ivie, 1935) Islandiana unicornis Ivie, 1965 Lophomma depressum (Emerton, 1882) Maso sundevalli (Westring, 1851) Masoncus arienus Chamberlin, 1949
Masoncus pogonophilus Cushing, 1995 Mecynargus borealis (Jackson, 1930) Mecynargus monticola Holm, 1943 Mecynargus paetulus (Pickard-Cambridge, 1875) Mecynargus tungusicus (Eskov, 1981) Mermessus albulus (Zorsch & Crosby, 1934) Mermessus bryantae (Ivie & Barrows, 1935) Mermessus denticulatus (Banks, 1898) Mermessus entomologicus (Emerton, 1911) Mermessus fradeorum (Berland, 1932) Mermessus index (Emerton, 1914) Mermessus jona (Bishop & Crosby, 1938) Mermessus maculatus (Banks, 1892) Mermessus tridentatus (Emerton, 1882) Mermessus undulatus (Emerton, 1914) Mermessusa trilobatus (Emerton, 1882) Metopobactrus prominulus (O. P.-Cambridge, 1872) Micrargus longitarsus (Emerton, 1882) Montilaira uta Chamberlin, 1921 ) (<= Collinsia uta) Mythoplastoides erectus (Emerton, 1915) Mythoplastoides exiguus (Banks, 1892) Neodietrichia hesperia (Crosby & Bishop 1933) (<= Dietrichia hesperia) Neodietrichia hesperia (Crosby & Bishop, 1933) Oedothorax alascensis (Banks, 1900) (<= Halorates alascensis) Oedothorax maximus (Emerton, 1882) Oedothorax montifer (Emerton, 1882) Oedothorax trilobatus (Banks, 1896) Oreonetides rectangulatus (Emerton, 1913) Oreonetides vaginatus (Thorell, 1872) Origanates rostratus (Emerton, 1882) Pelecopsidis frontalis (Banks, 1904) Pelecopsis bishopi (Kaston, 1945) Pelecopsis mengei (Simon) 1884 Pelecopsis sculpta (Emerton, 1917) Perregrinus deformis (Tanasevitch, 1982) Phanetta subterranea (Emerton, 1875) Phlattothrata flagellata (Emerton, 1911) Phlattothrata parva (Kulczyn'ski, 1926) Pocadicnemis americana Millidge, 1976 Pocadicnemis pumila (Blackwall, 1841) Saaristoa sammamish (Levi & Levi, 1955) Satilatlas gentilis Millidge, 1981 Satilatlas marxii Keyserling, 1886 Satilatlas monticola Millidge, 1981 Sciastes extremus Holm, 1967 Sciastes hastatus Millidge, 1984 Sciastes truncatus (Emerton) 1882 Scirites pectinatus (Emerton, 1911) Scironis sima Chamberlin, 1949 Scironis tarsalis (Emerton, 1911) Scotinotylus alpinus (Banks, 1896) Scotinotylus bicavatus Millidge, 1981
Scotinotylus exsectoides Millidge, 1981 Scotinotylus majesticus (Chamberlin & Ivie, 1947) Scotinotylus pallidus (Emerton, 1882) Scotinotylus patellatus (Emerton, 1917) Scotinotylus pollucis Millidge, 1981 Scotinotylus sacer (Crosby, 1929) Scotinotylus sanctus (Crosby, 1929) Scotinotylus vernalis (Emerton, 1882) Scylaceus pallidus (Emerton, 1882) Scyletria inflata Bishop & Crosby 1938 Semljicola lapponicus (Holm, 1939) Semljicola obtusus (Emerton, 1915) Silometopoides pingrensis (Crosby & Bishop, 1933) Sisicottus crossoclavis Miller, 1999 Sisicottus montanus (Emerton, 1882) Sisicottus nesides (Chamberlin, 1921) Sisicottus orites (Chamberlin, 1919) Sisicottus panopeus Miller, 1999 Sisicus apertus (Holm, 1939) Sisicus penifusifer Bishop & Crosby, 1938. Sisis rotundus (Emerton, 1925 Sitalcas ruralis Bishop & Crosby, 1938 Soucron arenarium (Emerton, 1925) Souessa spinifera (O. P.-Cambridge, 1874) Souessoula parva (Banks, 1899) Sougambus bostoniensis (Emerton) 1882 Soulgas corticarius (Emerton, 1909) Spirembolus demonologicus (Crosby, 1925) Spirembolus erratus Millidge, 1980 Spirembolus hibernus Millidge, 1980 Spirembolus novellus Millidge, 1980 Spirembolus pallidus Chamberlin & Ivie, 1935 Spirembolus pusillus Millidge, 1980 Spirembolus redondo (Chamberlin & Ivie, 1945) Spirembolus spirotubus (Banks, 1895) Styloctetor purpurescens (Keyserling, 1886) (<= Ceratinopsis purpurescens) Symmigma minimum (Emerton, 1923) Tachygyna haydeni Chamberlin & Ivie, 1939 Tachygyna tuoba (Chamberlin & Ivie, 1933) Tachygyna tuoba Chamberlin & Ivie, 1933 Tachygyna ursina (Bishop & Crosby, 1938) Tachygyna vancouverana Chamberlin & Ivie, 1939 Tapinocyba bicarinata (Emerton, 1913) Tapinocyba cameroni Dupérré & Paquin, 2007 Tapinocyba dietrichi Crosby & Bishop, 1933 Tapinocyba lindrothi Hackman, 1954 Tapinocyba minuta (Emerton, 1909) Tapinocyba simplex (Emerton, 1882) Thyreosthenius parasiticus (Westring, 1851) Tiso aestivus (Koch, 1872) Tiso vagans (Blackwall, 1834) Tmeticus affinis (Blackwall, 1855)
Tmeticus ornatus (Emerton, 1914) Traematosisis bispinosus (Emerton, 1911) Tunagyna debilis (Banks 1892) Typhochrestus pygmaeus (Sørensen, 1898) Vermontia thoracica (Emerton, 1913) Wabasso cacuminatus Millidge, 1984 Wabasso quaestio (Chamberlin, 1949) Walckenaeria atrotibialis (O.P.-Cambridge, 1878) Walckenaeria auranticeps (Emerton, 1882) Walckenaeria brevicornis (Emerton, 1882) Walckenaeria carolina Millidge, 1983 Walckenaeria castanea (Emerton, 1882) Walckenaeria clavicornis Emerton, 1882 Walckenaeria columbia Millidge, 1983 Walckenaeria communis (Emerton, 1882) Walckenaeria cornuella (Chamberlin & Ivie, 1939) Walckenaeria digitata (Emerton, 1913) Walckenaeria directa (O.P.-Cambridge, 1874) Walckenaeria dixiana (Chamberlin & Ivie, 1944) Walckenaeria exigua Millidge 1983 Walckenaeria floridiana Millidge, 1983 Walckenaeria fraudatrix Millidge, 1983 Walckenaeria helenae Millidge, 1983 Walckenaeria indirecta (O.P.-Cambridge, 1874) Walckenaeria karpinkskii (O. P.-Cambridge, 1873) Walckenaeria kochii (O.P.-Cambridge) 1872 Walckenaeria lepida (Kulczyn'ski, 1885) Walckenaeria maesta Millidge, 1983 Walckenaeria minuta (Emerton, 1882) Walckenaeria occidentalis Millidge, 1983 Walckenaeria pallida (Emerton, 1882) Walckenaeria palustris Millidge, 1983 Walckenaeria prominens Millidge, 1983 Walckenaeria spiralis (Emerton, 1882) Walckenaeria subdirecta Millidge, 1983 Walckenaeria subspiralis Millidge, 1983 Walckenaeria tenella Millidge, 1983 Walckenaeria tibialis (Emerton, 1882) Walckenaeria tricornis (Emerton, 1882) Walckenaeria tumida (Crosby & Bishop, 1931) Walckenaeria vigilax (Blackwall, 1853) Zornella armata (Banks, 1906) Zornella cryptodon (Chamberlin) 1920 Zygottus corvallis Chamberlin, 1949