Type-species: Austroagallia torrida Evans 1935, by original designation.
Synonym: Peragallia Ribaut 1948c: 59.
Type-species: Bythoscopus sinuatus Mulsant & Rey 1855, by original designation. Synonymised by Le Quesne 1964a: 73.
Distributed throughout Europe, S.W. Asia, Mediterranean region, Africa, India and Pakistan, with adventitious species occurring in several island groups such as Aldabra, Canaries, Galapagos, Madeira and Cape Verde. Two species occur in the Pacific, both of which are endemic to the area.