Camponotus ^HNS arenatus Shattuck ^HNS & McArthur

Worker. HW 1.5 - 1.8; HL 1.9 - 2.2. Major worker not yet described. Minor worker. Pronotum anterior regions dark red to black, distinctly darker than mesonotum and propodeum; metanotal groove depressed below level of anterior region of propodeum; node anterior face much shorter than posterior face; tibiae and scapes lacking erect setae; anterior clypeal margin broadly convex; propodeum lacking a distinct angle, PD / D about 1.5; node summit broadly convex; erect setae on all surfaces of head and mesosoma, node and gaster, absent from scapes and tibiae.