Gaius humphreysi

Gaius humphreysi is a species of mygalomorph spider in the Idiopidae family. It is endemic to Australia. It was described in 2018 by Australian arachnologists Michael Rix, Robert Raven and Mark Harvey.

Distribution and habitat
The species occurs in Western Australia in the Murchison bioregion. The type locality is the Mount Keith Mine, some 80 km south-east of Wiluna.