Insecta - Odonata - Macromiidae

Full reference: S. E. Lewis. 1969. Fossil insects of the Latah Formation (Miocene) of eastern Washington and northern Idaho. Northwest Science 43:99-115

Belongs to Epophthalmia according to A. Nel and J. C. Paicheler 1994

Sister taxon: Epophthalmia zotheca

Type specimen: UC Boulder MC 1a, a hindwing (Hindwing). Its type locality is Marshall Creek, Spokane, which is in a Serravallian/Burdigalian lacustrine - small mudstone in the Latah Formation of Washington.

Ecology: fast-moving volant carnivore-insectivore

Average measurements (in mm): hindwing 49.0 x 14.0