- family: Dictynidae
- genus: Ajmonia
- genus: Argenna
- genus: Argennina
- genus: Brommella
- genus: Devade
- genus: Dictyna
- species: Dictyna abundans Chamberlin & Ivie, 1941
- species: Dictyna agressa Ivie, 1947
- species: Dictyna alaskae Chamberlin & Ivie, 1947
- species: Dictyna annexa Gertsch & Mulaik, 1936
- species: Dictyna apacheca Chamberlin & Ivie, 1935
- species: Dictyna arundinacea (Linnaeus, 1758)
- species: Dictyna bellans Chamberlin, 1919
- species: Dictyna bellans hatchi Jones, 1948
- species: Dictyna bostoniensis Emerton, 1888
- species: Dictyna brevitarsa Emerton, 1915
- species: Dictyna calcarata Banks, 1904
- species: Dictyna cebolla Ivie, 1947
- species: Dictyna cholla Gertsch & Davis, 1942
- species: Dictyna coloradensis Chamberlin, 1919
- species: Dictyna crosbyi Gertsch & Mulaik, 1940
- species: Dictyna dauna Chamberlin & Gertsch, 1958
- species: Dictyna foliacea (Hentz, 1850)
- species: Dictyna formidolosa Gertsch & Ivie, 1936
- species: Dictyna gloria Chamberlin & Ivie, 1944
- species: Dictyna idahoana Chamberlin & Ivie, 1933
- species: Dictyna juno Ivie, 1947
- species: Dictyna longispina Emerton, 1888
- species: Dictyna major Menge, 1869
- species: Dictyna minuta Emerton, 1888
- species: Dictyna mora Chamberlin & Gertsch, 1958
- species: Dictyna nebraska Gertsch, 1946
- species: Dictyna peon Chamberlin & Gertsch, 1958
- species: Dictyna personata Gertsch & Mulaik, 1936
- species: Dictyna pictella Chamberlin & Gertsch, 1958
- species: Dictyna quadrispinosa Emerton, 1919
- species: Dictyna saepei Chamberlin & Ivie, 1941
- species: Dictyna saltona Chamberlin & Gertsch, 1958
- species: Dictyna sancta Gertsch, 1946
- species: Dictyna secuta Chamberlin, 1924
- species: Dictyna sierra Chamberlin, 1948
- species: Dictyna subpinicola Ivie, 1947
- species: Dictyna sylvania Chamberlin & Ivie, 1944
- species: Dictyna terrestris Emerton, 1911
- species: Dictyna tridentata Bishop & Ruderman, 1946
- species: Dictyna tucsona Chamberlin, 1948
- species: Dictyna volucripes Keyserling, 1881
- species: Dictyna volucripes volucripoides Ivie, 1947
- genus: Emblyna
- species: Emblyna aiko (Chamberlin & Gertsch, 1958)
- species: Emblyna altamira (Gertsch & Davis, 1942)
- species: Emblyna angulata (Emerton, 1915)
- species: Emblyna annulipes (Blackwall, 1846)
- species: Emblyna ardea (Chamberlin & Gertsch, 1958)
- species: Emblyna artemisia (Ivie, 1947)
- species: Emblyna borealis (O. P.-Cambridge, 1877)
- species: Emblyna borealis cavernosa (Jones, 1947)
- species: Emblyna branchi (Chamberlin & Gertsch, 1958)
- species: Emblyna callida (Gertsch & Ivie, 1936)
- species: Emblyna capens Chamberlin, 1948
- species: Emblyna chitina (Chamberlin & Gertsch, 1958)
- species: Emblyna completa (Chamberlin & Gertsch, 1929)
- species: Emblyna completoides (Ivie, 1947)
- species: Emblyna consulta (Gertsch & Ivie, 1936)
- species: Emblyna cornupeta (Bishop & Ruderman, 1946)
- species: Emblyna coweta (Chamberlin & Gertsch, 1958)
- species: Emblyna crocana Chamberlin, 1948
- species: Emblyna cruciata (Emerton, 1888)
- species: Emblyna decaprini (Kaston, 1945)
- species: Emblyna evicta (Gertsch & Mulaik, 1940)
- species: Emblyna florens (Ivie & Barrows, 1935)
- species: Emblyna francisca (Bishop & Ruderman, 1946)
- species: Emblyna hentzi (Kaston, 1945)
- species: Emblyna horta (Gertsch & Ivie, 1936)
- species: Emblyna hoya (Chamberlin & Ivie, 1941)
- species: Emblyna iviei (Gertsch & Mulaik, 1936)
- species: Emblyna joaquina (Chamberlin & Gertsch, 1958)
- species: Emblyna jonesae (Roewer, 1955)
- species: Emblyna klamatha (Chamberlin & Gertsch, 1958)
- species: Emblyna lina (Gertsch, 1946)
- species: Emblyna linda (Chamberlin & Gertsch, 1958)
- species: Emblyna littoricolens (Chamberlin & Ivie, 1935)
- species: Emblyna manitoba (Ivie, 1947)
- species: Emblyna mariae Chamberlin, 1948
- species: Emblyna marissa (Chamberlin & Gertsch, 1958)
- species: Emblyna maxima (Banks, 1892)
- species: Emblyna melva (Chamberlin & Gertsch, 1958)
- species: Emblyna nanda (Chamberlin & Gertsch, 1958)
- species: Emblyna oasa (Ivie, 1947)
- species: Emblyna olympiana (Chamberlin, 1919)
- species: Emblyna orbiculata (Jones, 1947)
- species: Emblyna oregona (Gertsch, 1946)
- species: Emblyna osceola (Chamberlin & Gertsch, 1958)
- species: Emblyna palomara Chamberlin, 1948
- species: Emblyna peragrata (Bishop & Ruderman, 1946)
- species: Emblyna phylax (Gertsch & Ivie, 1936)
- species: Emblyna pinalia (Chamberlin & Gertsch, 1958)
- species: Emblyna piratica (Ivie, 1947)
- species: Emblyna reticulata (Gertsch & Ivie, 1936)
- species: Emblyna roscida (Hentz, 1850)
- species: Emblyna saylori (Chamberlin & Ivie, 1941)
- species: Emblyna scotta Chamberlin, 1948
- species: Emblyna seminola (Chamberlin & Gertsch, 1958)
- species: Emblyna serena (Chamberlin & Gertsch, 1958)
- species: Emblyna shasta (Chamberlin & Gertsch, 1958)
- species: Emblyna shoshonea (Chamberlin & Gertsch, 1958)
- species: Emblyna stulta (Gertsch & Mulaik, 1936)
- species: Emblyna sublata (Hentz, 1850)
- species: Emblyna sublatoides (Ivie & Barrows, 1935)
- species: Emblyna suprenans (Chamberlin & Ivie, 1935)
- species: Emblyna suwanea (Gertsch, 1946)
- species: Emblyna uintana (Chamberlin, 1919)
- species: Emblyna zaba (Barrows & Ivie, 1942)
- genus: Hackmania
- genus: Iviella
- genus: Lathys
- species: Lathys alberta Gertsch, 1946
- species: Lathys albida Gertsch, 1946
- species: Lathys coralynae Gertsch & Davis, 1942
- species: Lathys delicatula (Gertsch & Mulaik, 1936)
- species: Lathys dixiana Ivie & Barrows, 1935
- species: Lathys foxi (Marx, 1891)
- species: Lathys immaculata (Chamberlin & Ivie, 1944)
- species: Lathys maculina Gertsch, 1946
- species: Lathys pallida (Marx, 1891)
- species: Lathys sylvania Chamberlin & Gertsch, 1958
- genus: Mallos
- genus: Mexitlia
- genus: Nigma
- genus: Phantyna
- species: Phantyna bicornis (Emerton, 1915)
- species: Phantyna micro (Chamberlin & Ivie, 1944)
- species: Phantyna mulegensis (Chamberlin, 1924)
- species: Phantyna pixi (Chamberlin & Gertsch, 1958)
- species: Phantyna provida (Gertsch & Mulaik, 1936)
- species: Phantyna rita (Gertsch, 1946)
- species: Phantyna segregata (Gertsch & Mulaik, 1936)
- species: Phantyna terranea (Ivie, 1947)
- species: Phantyna varyna (Chamberlin & Gertsch, 1958)
- species: Phantyna varyna miranda (Chamberlin & Gertsch, 1958)
- genus: Thallumetus
- genus: Tivyna
- genus: Tricholathys