Tyrannochthonius cavernicola

Tyrannochthonius cavernicola is a species of pseudoscorpion in the Chthoniidae family. It is endemic to Australia. It was described in 1976 by Austrian arachnologist Max Beier.

Description
The male holotype has a body length of 2.5 mm. The colour is pale reddish-brown. Eyes and eye-pigment are completely lacking.

Distribution and habitat
The species occurs only on Lord Howe Island, an offshore island of New South Wales in the Tasman Sea. The type locality is the totally dark zone of a cave at North Bay (Station 3).

Behaviour
The arachnids are cave-dwelling terrestrial predators.