Pseudoscorpions, also known as false scorpions or book scorpions, are small, scorpion-like arachnids belonging to the order Pseudoscorpiones, also known as Pseudoscorpionida or Chelonethida.
Menthidae is a family of pseudoscorpions, first described by Joseph Conrad Chamberlin in 1930.
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.
Bochicidae is a family of pseudoscorpions distributed throughout the Americas from Texas and Mexico to South America, from the Antilles to Venezuela, Guyana and Brazil, as well as in Europe. Members of the family can be diagnosed mainly by features of the claws, notably the presence of exactly 12 trichobothria on each claw and a long, as opposed to short, venom duct. Some species live in caves while some are surface-dwelling.
Compsaditha is a genus of pseudoscorpions in the family Chthoniidae. There are about 12 described species in Compsaditha.
Chernetidae is a family of pseudoscorpions, first described by Anton Menge in 1855.
Olpiidae is a family of pseudoscorpions in the superfamily Garypoidea. It contains the following genera:
Horus is a genus of pseudoscorpions in the family Olpiidae, containing the following species:
Garypinidae is a family of pseudoscorpions, first described by Eugen von Daday in 1889.
Atemnidae is a family of pseudoscorpions, first described by Kyukichi Kishida in 1929.
Neobisiidae is a family of pseudoscorpions distributed throughout Africa, the Americas and Eurasia and consist of 748 species in 34 genera. Some species live in caves while some are surface-dwelling.
Cryptocheiridium is a genus of pseudoscorpions in the Cheiridiidae family. It was described in 1931 by American arachnologist Joseph Conrad Chamberlin.
Cryptocheiridium elegans is a species of pseudoscorpions in the family Cheiridiidae. It is found in Cuba.
Garypidae is a family of pseudoscorpions, first described by Eugène Simon in 1879.
Cheliferidae is a family of pseudoscorpions in the order Pseudoscorpiones, first described by Antoine Risso in 1827.
Syarinidae is a family of pseudoscorpions in the order Pseudoscorpiones. There are at least 20 genera and 110 described species in Syarinidae.
Apocheiridium is a genus of pseudoscorpions belonging to the family Cheiridiidae.
Withiidae is a family of pseudoscorpions, first described by Joseph Conrad Chamberlin in 1931.
Cryptocheiridium australicum is a species of pseudoscorpion in the Cheiridiidae family. It was described in 1969 by Austrian arachnologist Max Beier.
