Parasthena is a genus of moth in the family Geometridae. It consists of only one species, Parasthena flexilinea, which is found on Sulawesi, the Philippines and Borneo and possibly on Seram and Papua New Guinea. The ground colour of the wings is pale grey-brown with fine grey-brown fasciation and black discal spots.
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