Carabus scabrosus, common name huge violet ground beetle, is a species of beetle of the family Carabidae.
The basic colour varies from bluish-black to violet or dark reddish brown.
Black varieties of the beetle typically also show a high absorption in the near-infrared part of the spectrum.
[1] The thorax is broad, truncated anteriorly and posteriorly, very slightly convex.
The elytrtra are oval, convex, and covered throughout with small tubercles.