Full reference: T. D. A. Cockerell. 1921. Eocene Insects from the Rocky Mountains. Proceedings of the United States National Museum 57:233-260
See also Cockerell 1921
Sister taxa: none
Type specimen: USNM 66550, a wing. Its type locality is Green River (Scudder Collection), which is in a Bridgerian lacustrine - large diatomite/shale in the Green River Formation of Wyoming.
Ecology: fast-moving volant carnivore-insectivore
Distribution: found only at Green River (Scudder Collection)
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.