Insecta - Coleoptera - Chrysomelidae

Full reference: S. H. Scudder. 1876. Fossil Coleoptera from the Rocky Mountain Tertiaries. Bulletin of the United States Geological and Geographical Survey of the Territories 2(1):77-87

Belongs to Bruchus according to S. H. Scudder 1890

Sister taxa: Bruchus aboriginalis, Bruchus bowditchi, Bruchus carpophiloides, Bruchus crassus, Bruchus decrepitus, Bruchus exhumatus, Bruchus henshawi, Bruchus osborni, Bruchus pisi, Bruchus striolatus

Type specimen: Its type locality is Chagrin Valley, which is in a Bridgerian lacustrine - large shale in the Green River Formation of Colorado

Ecology:

Average measurements (in mm): elytron 5.00 x 1.90