In synonymy:
Anitsia Chamberlin, 1921 = Collinsia O. Pickard-Cambridge, 1913 (Holm, 1944: 131)
Catabrithorax Chamberlin, 1920 = Collinsia O. Pickard-Cambridge, 1913 (Hackman, 1954: 22)
Coryphaeolana Strand, 1914 = Collinsia O. Pickard-Cambridge, 1913 (Holm, 1950: 138)
Coryphaeus F. O. Pickard-Cambridge, 1894 = Collinsia O. Pickard-Cambridge, 1913 (Holm, 1950: 138)
Crosbyana Strand, 1934 = Collinsia O. Pickard-Cambridge, 1913 (Crosby & Bishop, 1928a: 72, sub Catabrithorax)
Microerigone M. Dahl, 1928 = Collinsia O. Pickard-Cambridge, 1913 (Holm, 1958b: 45)
Milleriana Denis, 1966 = Collinsia O. Pickard-Cambridge, 1913 (Eskov, 1990c: 287)
Parerigone Crosby & Bishop, 1926 = Collinsia O. Pickard-Cambridge, 1913 (Crosby & Bishop, 1928a: 71, sub Catabrithorax)
Transferred to other genera:
Collinsia algida (Hackman, 1954) -- see Sougambus
Collinsia ceuthus (Chamberlin, 1920) -- see Halorates
Collinsia clypiella (Chamberlin, 1920) -- see Halorates
Collinsia crassipalpis (Caporiacco, 1935) -- see Halorates
Collinsia harmsi Wunderlich, 1972 -- see Diplocentria
Collinsia jeniseica Eskov, 1990 -- see Typhochrestoides
Collinsia lapidicola (Sørensen, 1898) -- see Scotinotylus
Collinsia lapponica (Holm, 1939) -- see Semljicola
Collinsia lapponica (Schenkel, 1939) -- see Notioscopus
Collinsia relicta (Chamberlin, 1949) -- see Masikia
Collinsia stylifera (Chamberlin, 1949) -- see Halorates
Collinsia uta (Chamberlin, 1919) -- see Montilaira
Collinsia wilburi Levi & Levi, 1955 -- see Frederickus
In synonymy:
Collinsia abjecta (Chamberlin, 1922, T from Anitsia) = Collinsia holmgreni (Thorell, 1871) (Holm, 1944: 131, sub Catabrithorax)
Collinsia aestivalis (Emerton, 1911, T from Tmeticus) = Collinsia oxypaederotipus (Crosby, 1905) (Crosby & Bishop, 1928a: 66, sub Catabrithorax)
Collinsia deserta (L. Koch, 1879, T from Erigone) = Collinsia inerrans (O. Pickard-Cambridge, 1885) (Holm, 1973: 87, sub Milleriana)
Collinsia foenaria (Simon, 1884) = Collinsia inerrans (O. Pickard-Cambridge, 1885) (Millidge, 1977: 55, sub Milleriana)
Collinsia fortunata (O. Pickard-Cambridge, 1896, T from Tmeticus) = Collinsia inerrans (O. Pickard-Cambridge, 1885) (Simon, 1926: 530, sub Scotargus)
Collinsia glabriceps (F. O. Pickard-Cambridge, 1894) = Collinsia distincta (Simon, 1884) (Simon, 1926: 531, sub Coryphaeolanus)
Collinsia groenlandica (Lenz, 1897, T from Erigone) = Collinsia holmgreni (Thorell, 1871) (Brændegaard, 1940: 14, sub Coryphaeolana)
Collinsia humilis (Banks, 1892, T from Tmeticus) = Collinsia plumosa (Emerton, 1882) (Crosby & Bishop, 1928a: 70, sub Catabrithorax)
Collinsia imula (L. Koch, 1879, T from Oedothorax) = Collinsia inerrans (O. Pickard-Cambridge, 1885) (Holm, 1973: 87, sub Milleriana)
Collinsia japonica (Oi, 1964) = Collinsia inerrans (O. Pickard-Cambridge, 1885) (Marusik et al., 1993a: 69, sub Collinsia submissa)
Collinsia mendica (L. Koch, 1879) = Collinsia holmgreni (Thorell, 1871) (Brændegaard, 1932a: 20, sub Coryphaeolana)
Collinsia nivicola (Strand, 1901, T from Lophomma) = Collinsia holmgreni (Thorell, 1871) (Brændegaard, 1932a: 14, sub Coryphaeolana)
Collinsia notabilis O. Pickard-Cambridge, 1913 = Collinsia distincta (Simon, 1884) (Bristowe, 1939: 84, sub Coryphaeolanus)
Collinsia obscura (Banks, 1892, T from Tmeticus) = Collinsia plumosa (Emerton, 1882) (Crosby & Bishop, 1928a: 70, sub Catabrithorax)
Collinsia oxycephala (L. Koch, 1879, T from Erigone) = Collinsia spetsbergensis (Thorell, 1871) (Kulczyński, 1902b: 343, sub Typhochrestus)
Collinsia pectinata (Emerton, 1894, T from Oedothorax) = Collinsia perplexa (Keyserling, 1886) (Crosby & Bishop, 1928a: 68, sub Catabrithorax)
Collinsia provocans (O. Pickard-Cambridge, 1877, T from Tmeticus) = Collinsia spetsbergensis (Thorell, 1871) (Kulczyński, 1902b: 343, sub Typhochrestus)
Collinsia similis (Sørensen, 1898, T from Walckenaeria) = Collinsia holmgreni (Thorell, 1871) (Brændegaard, 1940: 14, sub Coryphaeolana)
Collinsia strandi (Schenkel, 1929) = Collinsia inerrans (O. Pickard-Cambridge, 1885) (Miller & Kratochvíl, 1939: 37, sub Trichoncus)
Collinsia submissa (L. Koch, 1879, T from Oedothorax) = Collinsia inerrans (O. Pickard-Cambridge, 1885) (Holm, 1973: 87, sub Milleriana)
Collinsia usurpabilis (Keyserling, 1886, T from Erigone) = Collinsia caliginosa (L. Koch, 1879) (Slowik & Marusik, 2025: 299)