Insecta - Diptera - Syrphidae

Full reference: T. D. A. Cockerell. 1921. Eocene Insects from the Rocky Mountains. Proceedings of the United States National Museum 57:233-260

Belongs to Syrphidae according to T. D. A. Cockerell 1921

Sister taxa: Archisyrphus, Cheilosinae, Chrysotoxinae, Eristalinae, Eumerinae, Metasyrphus, Microdontinae, Milesia, Milesiinae, Psilota, Ptilocephala, Syrphinae, Volucellinae, Xylotinae

Ecology: