Trichoniscidae are a family of isopods (woodlice), including the most abundant British woodlouse, Trichoniscus pusillus

Trichoniscus pusillus

Trichoniscus pusillus, sometimes called the common pygmy woodlouse, is one of the five most common species of woodlice in the British Isles. It is acknowledged to be the most abundant terrestrial isopod in Britain. It is found commonly across Europe north of the Alps, and has been introduced to...

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Most species of woodlice that have returned to an aquatic or amphibian way of life belong to this family. Several species from the following genera live in water and on land: Titanethes, Cyphonetes, Alpioniscus, Scotoniscus, Bureschia, Brackenridgia, Mexiconiscus, Trichoniscoides, Cretoniscellus, Balearonethes and Cyphoniscellus.

Genera

The family Trichoniscidae contains the following genera, including those previously treated as the separate family Buddelundiellidae:

• Acteoniscus Vandel, 1955 – Greece
• Acyphoniscus Frankenberger, 1941 – Bulgaria
• Aegonethes Frankenberger, 1938 – islands off the shore of Croatia and Italy
• Alistratia Andreev, 2004 – Greece
• Alpioniscus Racovitza, 1908 – Europe
• Amerigoniscus Vandel, 1950 – North America
• Anatoliscus Verhoeff
  Karl Wilhelm Verhoeff
  Karl Wilhelm Verhoeff was a German zoologist, specialising in millipedes and centipedes , as well as woodlice and to a lesser extent insects.-Biography:...
  
  , 1949 – Turkey
• Androniscus Verhoeff, 1908 – Europe
• Balearonethes Dalens, 1977 – Majorca
• Balkanoniscus Verhoeff, 1926 – Bulgaria
• Banatoniscus Tabacaru, 1991 – Romania
• Bergamoniscus Brian & Vandel, 1949 – Italy
• Beroniscus Vandel, 1969 – Bulgaria, Sicily
• Biharoniscus Tabacaru, 1963 – Romania
• Borutzkyella Tabacaru, 1993 – Abkhazia
  Abkhazia
  Abkhazia is a disputed political entity on the eastern coast of the Black Sea and the south-western flank of the Caucasus.Abkhazia considers itself an independent state, called the Republic of Abkhazia or Apsny...
  
  
• Brackenphiloscia Ortiz, Debras & Lalana, 1999 – Cuba
• Brackenridgia Ulrich, 1902 – North America
• Buddelundiella Silvestri, 1897 – Mediterranean, Europe
• Bulgaronethes Vandel, 1967 – Bulgaria
• Bureschia Verhoeff, 1926 – Burma
• Calconiscellus
  Calconiscellus
  Calconiscellus is a genus of crustacean in family Trichoniscidae. One species, C. gotscheensis, is listed as vulnerable on the IUCN Red List.-Species:*Calconiscellus bertkaui *Calconiscellus castelmartius Verhoeff, 1938)...
  
  Verhoeff, 1938 – Slovenia, Hungary, Austria, Greece
• Cantabroniscus Vandel, 1965 – Spain
• Carloniscus Verhoeff, 1936 – France, in caves
• Castellanethes Brian, 1952 – Italy: Bari
• Catalauniscus Vandel, 1953 – Spain: Tarragona
• Caucasocyphonethes Borutzky, 1948 – Russia
• Caucasonethes Verhoeff, 1932 – Georgia
• Chasmatoniscus Strouhal, 1971 – Turkey
• Colchidoniscus Borutzky, 1974 – Western Grusia
• Cylindroniscus Arcangeli, 1929 – Cuba, Mexico
• Cyphobrembana Verhoeff, 1931 – Italy
• Cyphonethes Verhoeff, 1926 – Hercegovina
• Cyphoniscellus Verhoeff, 1901 – Italy, Southeast Europe
• Cyphopleon Frankenberger, 1940 – Dalmatia, cave
• Cyphotendana Verhoeff, 1936 – Alps
• Cyrnoniscus Vandel, 1953 – Corsica
• Escualdoniscus Vandel, 1948 – France (unavailable name)
• Finaloniscus Brian, 1951 – Italy, Corsica
• Graeconiscus Stouhal, 1940 – Greece, Macedonia
• Haplophthalmus
  Haplophthalmus
  Haplophthalmus is a genus of woodlice in family Trichoniscidae. It contains 47 described species, of which two are listed as vulnerable species on the IUCN Red List – Haplophthalmus abbreviatus and Haplophthalmus rhinoceros .-Species:*Haplophthalmus abbreviatus Verhoeff, 1928*Haplophthalmus...
  
  Schöbl, 1860 – Mediterranean, introduced to Tasmania and North America (55 species)
• Helenoniscus Legrand, 1943 – France
• Hondoniscus Vandel, 1968 – Japan
• Hyloniscus Verhoeff, 1908 – Europe, eastern North America, Japan
• Iberoniscus Vandel, 1952 – Spain
• Katascaphius Verhoeff, 1936 – Alps
• Kosswigius Verhoeff, 1941 – Turkey, Greece
• Lapilloniscus Brian, 1938 – Italy
• Leucocyphoniscus Verhoeff, 1900 – Switzerland, Italy
• Libanonethes Vandel, 1955 – Libanon
• Macedonethes Buturović, 1955 – Macedonia
• Metatrichoniscoides
  Metatrichoniscoides
  Metatrichoniscoides is a genus of crustacean in family Trichoniscidae, with four described species:* Metatrichoniscoides celticus Oliver & Trew, 1981* Metatrichoniscoides fouresi Vandel, 1950* Metatrichoniscoides leydigi...
  
  Vandel, 1943 – southern England, France, Germany, Sweden, Finland
• Mexiconiscus Schultz, 1964 – Mexico
• Microtitanethes Pljakic, 1977 – West Serbia
• Miktoniscus Kesselyak, 1930 – United States, Great Britain, Madeira, Azores
• Mingrelloniscus Borutzky, 1974 – Caucasus
• Mladenoniscus Karaman, 2008 - Macedonia
• Monocyphoniscus Strouhal, 1939 – Bulgaria
• Moserius
  Moserius
  Moserius is a genus of crustacean in family Trichoniscidae, with two described species:* Moserius elbanus Taiti & Ferrara, 1995* Moserius percoi Strouhal, 1940...
  
  Strouhal, 1940 – near Trieste, Italy
• Murgeoniscus Arcangeli, 1939 – Italy
• Nesiotoniscus Racovitza, 1908 – southern France, Corsica, Capraia Island
• Nippononethes Tabacaru, 1996 – Japan
• Oregoniscus Hatch, 1947 – United States: Oregon
• Oritoniscus Racovitza, 1908 – Pyrenees
• Paracyphoniscus Brian, 1958 – Italy
• Phymatoniscus Racovitza, 1908 – France (4 species)
• Protonethes Absolon & Strouhal, 1932 – Yugoslavia
• Psachonethes Borutzky, 1969 – Southwest Caucasus, north Iran (2 species)
• Pseudobuddelundiella Borutzky, 1967 – Northern Caucasus
• Rhodopioniscus Tabacaru, 1993 – Bulgaria (3 species)
• Sanfilippia Brian, 1949 – Italy
• Scotoniscus Racovitza, 1908 – Pyrenees, Sardinia (3 species)
• Siciloniscus Caruso, 1982 – Sicily
• Spelaeonethes Verhoeff, 1932 – Spain, Italy, Sicily, Sardinia, Algeria (5 species)
• Strouhaloniscellus Tabacaru, 1993 – south Bosnia
• Tachysoniscus Verhoeff, 1930 – southeastern Alps
• Tauronethes Borutzky, 1949 – Krimea
• Thaumatoniscellus Tabacaru, 1973 – Romania
• Titanethes Schiødte, 1849 – Italy, Slovenia, Croatia, Hercegovina (3 species)
• Trichonethes Strouhal, 1953 – Turkey (2 species)
• Trichoniscoides Sars, 1898 – France, Spain, England, Germany, Denmark (40 species)
• Trichoniscus
  Trichoniscus
  Trichoniscus is a genus of woodlice. It contains over 100 species, including the common pygmy woodlouse, Trichoniscus pusillus:*Trichoniscus aenariensis Verhoeff, 1942*Trichoniscus alemannicus Verhoeff, 1917...
  
  Brandt, 1833 – Europe, North America (185 species)
• Tricyphoniscus Verhoeff, 1936 – Bulgaria
• Troglocyphoniscus Stouhal, 1939 – Yugoslavia (2 species)
• Troglonethes Cruz, 1991 – Spain
• Turkonethes Verhoeff, 1943 – Turkey (2 species)
• Typhlotricholigioides Rioja, 1953 – Mexico
• Vandeloniscellus Tabacaru, 1993 – Bulgaria