Udea violae is a moth of the Crambidae family. It is endemic to Oahu. The larvae feed on Viola species. Full-grown larvae are about 20 mm long and light green, with white dorsal fat bodies showing through. They spin up between leaves. The pupal period lasts 26 days.
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