Diatonica is a genus of moth in the family Cosmopterigidae. It contains only one species, Diatonica macrogramma, which is found in Australia, where it has been recorded from Victoria.
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