Psilopa is a genus of flies. The Petroleum fly, formerly P. petrolei, which is the only known insect to develop in naturally occurring crude oil, was transferred to genus Helaeomyia.
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