Theryaxia is a monotypic genus of beetles in the family Buprestidae, the jewel beetles. The single species is Theryaxia suttoni. It is endemic to Australia, where it occurs in New South Wales and Queensland. The larvae of this species are found on white cypress-pine (Callitris columellaris syn. Callitris glaucophylla).
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0