List of Genera
- Anopsobiella Attems, 1938
- Anopsobius Silvestri, 1899
- Aphilodon Silvestri, 1898
- Apogeophilus Silvestri, 1905
- Apunguis Chamberlin, 1947
- Araucania Chamberlin, 1955
- Archeobius Chamberlin, 1952
- Archethopolys Chamberlin, 1925
- Archilithobius Stuxberg, 1875
- Arcophilus Chamberlin, 1943
- Arctogeophilus Attems, 1909
- Arebius Chamberlin, 1916
- Arenobius Chamberlin, 1912
- Arenophilus Chamberlin, 1912
- Arkansobius Chamberlin, 1938
- Arrhabdotus Attems, 1930
- Arrup Chamberlin, 1912
- Arthronomalus Newport, 1844
- Arthrorhabdinus Verhoeff, 1907
- Arthrorhabdus Pocock, 1891
- Asanada Meinert, 1886
- Asanadopsis Würmli, 1972
- Aspidopleres Porat, 1893
- Atethobius Chamberlin, 1915
- Australiophilus Verhoeff, 1925
