Principiala is an extinct genus of lacewing in the moth lacewings family Ithonidae. The genus is known from Cretaceous fossils found in South America, Europe, and possibly Asia. The genus is composed of two species, the type species Principiala incerta, and Principiala rudgwickensis.
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