4 to 6.5 mm long.
Elongate insects, with parallel sides, slightly flat, quite visible wide head with powerful mandibles.
Eleven-articled antennae, antennal clubs formed of 2 articles; antennae about the same length as the pronotum. Thorax slightly wider at the front than at the rear part, with a longitudinal concave hollow in its middle. Elytra about 2.5-fold more in length than in width, with a short, scarce pubescence of flat golden bristles pointing to the rear end on their upper part
Uniformly dark brown to reddish brown.