Austrochthonius cavicola is a species of pseudoscorpion in the Chthoniidae family. It is endemic to Australia. It was described in 1968 by Austrian arachnologist Max Beier.[1]
The holotype male has a body length of 1.2 mm. It lacks eyes, and is pale brownish-yellow in colour.
The species occurs in south-eastern South Australia. The type (and only known) locality is Cathedral Cave, Naracoorte Caves National Park.[1]
The pseudoscorpions are cave-dwelling terrestrial predators.[1]