PaleoDB taxon number: 262656
Full reference: A. P. Rasnitsyn. 1995. Tertiary sawflies of the tribe Xyelini (Insecta: Vespida=Hymenoptera: Xyelidae) and their relationship to the Mesozoic and modern faunas. Contributions in Science, Natural History Museum of Los Angeles County 450:1-14
Type specimen: USNM 127677, an exoskeleton. Its type locality is Florissant (USNM Collection), which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.
Average measurements (in mm): body length 4.00, forewing length 3.80