Length: 10.1 - 15.2 mm
In Harpalus pensylvanicus the pronotal base is about as wide as the elytral base. The pronotum is wider than it is long. The base of the pronotum is depressed at each corner, and has dense, fine punctations there (Ciegler, 2000).
The antennae and legs are reddish yellow.
In females elytral intervals 5 - 9 are punctate; in males, intervals 7 - 9.
Harpalus pensylvanica is usually found on the ground, possibly under a stone or log or in leaf litter. There are records of collection from carrion, and at lights.
Photo data: 7 September 2013. Ruraldale, Upshur County, West Virginia.