This species is known only from south-west of Vista Hermosa and Metates towns, in the Sierra de Juarez in north central Oaxaca, Mexico, at 800-1,500m asl. It might occur more widely than is currently known.
Habitat and Ecology
It inhabits cloud forest and tropical forest at moderate altitudes, where it lives on the ground under rocks and logs. Reproduction is presumably by direct development.
The is very rare, having only been recorded twice at two different locations despite numerous attempts to find it.
The main threat to this species is presumably the loss of its original forest habitat as a result of logging and expanding agricultural development.
It has not been found in any protected areas.
Red List Status
Critically Endangered (CR)
Gabriela Parra-Olea, David Wake, James Hanken 2008. Thorius smithi. In: IUCN 2014