Tyrannochthonius semihorridus

Tyrannochthonius semihorridus is a species of pseudoscorpion in the Chthoniidae family. It is endemic to Australia. It was described in 1969 by Austrian arachnologist Max Beier.

Distribution and habitat
The species occurs in south-eastern Queensland, where it inhabits plant litter in closed forest habitats. The type locality is Mount Nebo.

Behaviour
The arachnids are terrestrial predators.