PaleoDB taxon number: 208779
Full reference: S. H. Scudder. 1890. The Tertiary Insects of North America. Report of the United States Geological Survey of the Territories XIII:1-734
Sister taxa: none
Type specimen: PU 1.837, an exoskeleton. Its type locality is Florissant (former Princeton collection), which is in an Eocene lacustrine - large shale/volcaniclastic in the Florissant Formation of Colorado.
Average measurements (in mm): body 14.5 x 6.5