Prays delta is a moth of the Yponomeutidae family. It is found on the island of Honshu in Japan and has also been recorded from China. The wingspan is 12–13 mm.
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