The Sironidae are a family of harvestmen with more than 30 described species.
The family shows a Laurasian distribution, with most species found in temperate Europe and the west coast of North America. The only exception is Suzukielus sauteri from Japan.
Siro is the Latinized form of the French name "Ciron".
Cyphophthalmus (mostly Balkan)
Cyphophtalmus duricorius Joseph, 1868 (Austria, Croatia, Slovenia, Bosnia-Herzegovina, Italy)
Cyphophtalmus duricorius bithynicus (Gruber, 1973) (Turkey: Bursa)
Cyphophtalmus duricorius bolei (Hadzi, 1973) (Montenegro)
Cyphophtalmus duricorius corfuanus <small(>Kratochvíl, 1937) (Greece: Corfu)
Cyphophtalmus duricorius yalovensis (Gruber, 1973) (Turkey: Yalova)
Cyphophtalmus eratoae Juberthie, 1968 (Greece)
Cyphophthalmus ere Karaman, 2007 (Serbia)
Cyphophthalmus gjorgjevici (Hadzi, 1933) (Republic of Macedonia)
Cyphophthalmus klisurae (Hadzi, 1973) (cave near Klisura, Serbia)
Cyphophthalmus markoi Karaman, 2007 (Republic of Macedonia)
Cyphophthalmus minutus Kratochvíl, 1937 (Croatia, cave)
Cyphophthalmus montenegrinus Hadzi, 1973 (Montenegro)
Cyphophthalmus noctiphilus Kratochvíl, 1940 (Croatia: cave Vranjaca)
Cyphophthalmus nonveilleri Karaman, 2007 (Serbia, cave)
Cyphophthalmus ohridanus Hadzi, 1973 (Republic of Macedonia, cave)
Cyphophthalmus serbicus Hadzi, 1973 (karstic region of east and central Serbia)
Cyphophthalmus silhavyi Kratochvíl, 1937 (Croatia, cave)
Cyphophthalmus teyrovskyi Kratochvíl, 1937 (Croatia, cave)
Iberosiro (Portugal, cave)
Iberosiro distylos de Bivort, 2004
Odontosiro Juberthie, 1961 (Portugal, Spain)
Odontosiro lusitanicus Juberthie, 1961
Paramiopsalis Juberthie, 1962 (Portugal, Spain)
Paramiopsalis ramulosus Juberthie, 1962
Parasiro Hansen & Sørensen, 1904
Parasiro coiffaiti Juberthie, 1956 (Spain, France)
Parasiro corsicus (Simon, 1872) (Corsica)
Parasiro minor Juberthie, 1958 (Italy, Corsica)
Siro Latreille, 1796 (western Europe, North America)
Siro acaroides (Ewing, 1923) (US west coast: Washington, Oregon, California)
Siro beschkovi Mitov, 1994 (Bulgaria)
Siro boyerae Giribet & Shear (not yet published) (Washington, Oregon)
Siro calaveras Giribet & Shear (not yet published) (California)
Siro carpaticus Rafalski, 1956 (Poland, Slovakia)
Siro crassus Novak & Giribet, 2006 (Slovenia)
Siro exilis Hoffman, 1963 (US east coast: Virginia, West Virginia, Maryland)
Siro kamiakensis (Newell, 1943) (Washington, Idaho)
† Siro platypedibus Dunlop & Giribet, 2004 (fossil, Tertiary amber from Bitterfeld, Germany)
Siro rubens Latreille, 1804 (France)
Siro shasta Giribet & Shear (not yet published) (California)
Siro sonoma Shear, 1980 (Northern California)
Siro valleorum Chemini, 1990 (Italy)
Suzukielus Juberthie, 1970 (Japan)
Suzukielus sauteri (Roewer, 1916)
Tranteeva (Bulgaria)
Tranteeva paradoxa Kratochvíl, 1958
The following genus is no longer included in Sironidae, but also not yet included in any new family:
Marwe Shear, 1985 (Kenya)
Marwe coarctata Shear, 1985
