PaleoDB taxon number: 262438
Full reference: F. M. Hull. 1945. A revisional study of the fossil Syrphidae. Bulletin of the Museum of Comparative Zoology 95:251-355
Sister taxa: none
Type specimen: MCZ 3941, an exoskeleton. Its type locality is Florissant (MCZ Collection), which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.
Average measurements (in mm): body length 8.20, wing length 5.60