Insecta - Coleoptera - Hydrophilidae

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

Belongs to Mesobrochus according to S. H. Scudder 1890

Sister taxon: Mesobrochus imbecillus

Type specimen: MCZ 300, an exoskeleton. Its type locality is Florissant (MCZ Collection), which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.

Ecology:

Average measurements (in mm): antennae length 6.00, body length 6.00, forewing 7.00 x 1.85