c. Amara exarata Dejean

Oblong-oval, robust, strongly convex, piceous to black, shining, antennae and legs reddish brown. Pronotum subquadrate; two sublinear basal impressions each side punctate; posterior angles small, acute, not distinctly carinate. Elytral striae deep, closely punctate; intervals flat. Length 8 - 10 mm.