Chthoniidae
Chthoniidae is a family of pseudoscorpions within the superfamily Chthonioidea. The family contains more than 600 species in about 30 genera. Fossil species are known from Baltic, Dominican, and Burmese amber. Chthoniidae now includes the former families Tridenchthoniidae, and Lechytiidae which has been demoted to subfamilies.
Genera
For a list of all currently described species see List of Chthoniidae species.Aphrastochthonius J. C. Chamberlin, 1962 — Mexico, southern US, Guatemala, CubaApochthonius J. C. Chamberlin, 1929 — North AmericaAustrochthonius J. C. Chamberlin, 1929 — South America, Australia, New ZealandCaribchthonius Muchmore, 1976 — CaribbeanChiliochthonius Vitali-di Castri, 1975 — ChileChthonius C. L. Koch, 1843 — Europe to Iran, North Africa, Balearic Islands, USA; one cosmopolitan speciesCongochthonius Beier, 1959 — ZaireDrepanochthonius Beier, 1964 — ChileEphippiochthonius Beier, 1930Francochthonius Vitali-di Castri, 1975 — ChileKleptochthonius J. C. Chamberlin, 1949 — USALagynochthonius Beier, 1951 — Australasia, AfricaMalcolmochthonius Benedict, 1978 — USAMaorichthonius J. C. Chamberlin, 1925 — New ZealandMexichthonius Muchmore, 1975 — Mexico, TexasMundochthonius J. C. Chamberlin, 1929 — Eurasia, Dominican Republic, North AmericaNeochthonius J. C. Chamberlin, 1929 — California, Romania Paraliochthonius Beier, 1956 — Europe, Africa, Australia, Florida, several islandsPseudochthonius Balzan, 1892 — South, Central America, AfricaSathrochthoniella Beier, 1967 — New ZealandSathrochthonius J. C. Chamberlin, 1962 — Australia to New Caledonia, South AmericaSpelyngochthonius Beier, 1955 — Sardinia, Spain, FranceStygiochthonius Carabajal Marquez, Garcia Carrillo & Rodriguez Fernandez, 2001 — SpainTroglochthonius Beier, 1939 — Italy, YugoslaviaTyrannochthoniella Beier, 1966 — New ZealandTyrannochthonius J. C. Chamberlin, 1929 — Brazil to southern USA, Australasia, Africa, HawaiiVulcanochthonius Muchmore, 2000 — Hawai'i- †Weygoldtiella Harvey et al., 2018 — Burmese amber, Myanmar Cenomanian
- †Prionochthonius — Burmese amber, Myanmar Cenomanian
Tridenchthoniinae
Anaulacodithella — Southern Africa, Australia, New Caledonia- † ChelignathusCompsaditha — Africa, South America, South and Southeast Asia, SeychellesCryptoditha — South AmericaDitha — Africa, Southeast Asia, OceaniaDithella — Southeast AsiaHaploditha — South AmericaHeterolophus — Australia, South AmericaNeoditha — South AmericaPycnodithella — Africa, AustraliaSororoditha — South AmericaTridenchthonius — Africa, South and Central AmericaTyphloditha — AfricaVerrucaditha — North AmericaVerrucadithella — Africa, South America