Body elongate, robust. All femora spined in both sexes. Pronotum widest just before middle, arcuate laterally, anterior angles projected and acute. Elytra parallel sided (males) to moderately inflated (females), smooth and faintly punctate striate. Prosternum projected posterior of procoxae, deflexed ventrally at apex.

Mohave, Coconino, La Paz, Yavapai, Yuma, Maricopa, Pinal, Pima counties AZ. CA, OR, ID, NV. Sonora and Baja Norte, Mexico.