Thenmus aigialites is a species of pseudoscorpion in the Menthidae family. It is endemic to Australia. It was described in 1990 by Australian arachnologist Mark Harvey.
The species occurs in the Mackay Region of coastal eastern Queensland. The type locality is Finlaysons Point, 2 km north-west of Seaforth. The pseudoscorpions were found in plant litter.
The pseudoscorpions are terrestrial predators.