Length 3.6-4 mm.; width 1.7-1.9 mm. Elongate oval, subequally narrowed in front and behind. Dorsum very dark brown, the anterior portion of the head pale brown, a median band extending across the pronotum sometimes slightly paler, elytra near basal and lateral margins sometimes very slightly paler; antennae reddish-yellow, the segments except the basal four each strongly infuscate except at base; legs and prothoracic venter reddish-yellow; remainder of venter black, shining.