Length: 9.5 - 11.5 mm
In Harpalus erythropus the elytral striae are smooth rather than punctate or micropunctate; the elytral intervals are punctate only at the base (Ciegler, 2000).
Look for this species in spring and summer, at lights or under rocks or logs.
The blue-green states and provinces on the map below are the ones with published records of Harpalus erythropus.
Photo data: 21 July 2008. At lights, Ruraldale, Upshur County, West Virginia.
Determined by Dr. Terry Erwin, Smithsonian Institution.
A congener photographed at the same location is Harpalus pensylvanica.