Insecta - Coleoptera - Carabidae

Full reference: H. F. Wickham. 1909. New Fossil Coleoptera from Florissant. American Journal of Science, Series 4 28(4):126-130

Belongs to Calosoma according to H. F. Wickham 1909

Sister taxa: Calosoma (Callisthenes), Calosoma agassizi, Calosoma brunneum, Calosoma escrobiculatum, Calosoma fernquisti, Calosoma maderae

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

Ecology:

Average measurements (in mm): elytron 15.1 x 5.9