This is a large tribe of pselaphine beetles, including over 600 species and about 30 genera. The taxon was first established in 1890 by the French zoologist Achille Raffray.
Subtribe: Bythinina Raffray, 1890
· Bryaxis Kugelann, 1794 — (about 400 species)
· Bythinus Leach, 1817 — Europe (35 species)
· Glyphobythus Raffray, 1904 — (9 species)
· Linderia Saulcy, 1863 — (11 species)
· Machaerodes Brendel, 1890 — North America (1 species)
· Typhlobythus Jeannel, 1926 — France (1 species)
Subtribe: Machaeritina Jeannel, 1950 (this subtribe is primarily composed of cave-dwelling species, and its status is debated)
· Antrobythus Besuchet, 1985 — Europe (2 species)
· Bathybythus Besuchet, 1974 — Spain (1 species)
· Bythoxenites Jeannel, 1958 — Japan (10 species)
· Bythoxenus Motschulsky, 1860 — Europe (2 species)
· Decatocerus Saulcy, 1871 — Spain (6 species)
· Gasparobythus Poggi, 1992 — (2 species)
· Leptobythus Jeannel, 1955 — Mallorca (1 species)
· Machaerites Miller, 1855 — Balkans (14 species)
· Prionobythus Jeannel, 1921 — Spain (2 species)
· Spelaeobythus Löbl, 1965 — Europe (1 species)
· Speleochus Park, 1951 — North America (8 species)
Subtribe: Xenobythina Jeannel, 1950 (the status of this subtribe is debated)
· Pselaptrichus Brendel, 1889 — (39 species)
· Xenobythus Peyerimhoff, 1901 — French Alps (1 species)
Genera incertae sedis (the following genera are placed within Bythinini but their precise subtribal classification is uncertain (incertae sedis))
· Biokovobythus Pavićević & Ozimec, 2014 – Balkans(1 species)
· Gasparobythus Poggi, 1992 - Italy(2 species)
· Grguria Pavićević & Ozimec, 2012 — Balkans (1 species)
Melledobythus Hlaváč, Nakládal & Jalžić, 2014 – Balkans (1 species)
· Nonveilleria Pavicevic & Besuchet, 2003 — Balkans (2 species)
· Pauperobythus Nonveiller, Pavićević & Ozimec, 2002 — Balkans (1 species)
· Velebythus Pavićević & Ozimec, 2012 – Balkans
(1 species)
Fossil record (two extinct genera from Cretaceous Burmese amber are known within this tribe)
· †Boreotethys
· †Ceratobythus[1]