The beetle is 2.78–4.20 mm long. The tarsi and antennae are ferruginous, while the rest of the body is black. The body is elongate, with a noticeable constriction between the pronotum and elytra in dorsal view, and is evenly convex in profile. The rostrum features a median carina that ends at the forehead, flanked by a pair of submedian ridges. The furrows between these ridges each contain a row of erect, piliform scales. The epistome has a transverse, angular ridge that forms a small median tooth.[1]
The pronotum projects subangularly at the anterolateral corners and shows a subapical constriction. Its surface is coarsely punctate, with dull, microreticulate interspaces; each puncture contains a small seta. The disc also has a pair of shallow submedian impressions. The elytral striae are indistinct, and the intervals are flat with irregular punctation; each puncture contains a small recumbent seta. The interspaces are dull, coriaceous, and microreticulate. Interval 7 is swollen near the apex and slightly projects laterally, while the sutural interval at the apex is prominently swollen, forming a pair of rounded apical protrusions. The femora have a blunt tooth formed by the anteroventral ridge. The metafemur bears a subapical stridulatory patch and a transverse row of denticles. Abdominal ventrite 5 has a broad impression and is sparsely covered with long, erect setae.[1]
The penis has nearly parallel sides and a broadly rounded apex. The transfer apparatus is small and spine-like (spiniform), and the apodemes are 1.5 times the length of the penis body. The ductus ejaculatorius lacks a bulbus.[1]
In males, the integument is dull and microreticulate-coriaceous, while in females, the interspaces between punctures are polished. The female rostrum has a glabrous median ridge bordered by puncture rows and a pair of sublateral furrows; the epistome is simple. In females, the elytra have a smoothly convex lateral contour in the basal half, with intervals 2–3 being subapically costate. In males, the elytral lateral contour is sinuate in the basal half, with a concavity at the level of the hind legs, and intervals 2–3 show indistinct ridges subapically.[1]
