Cylindronotus

Body black, robust, head and pronotum shiny, elytra dull. Head: outer margin between gena and frontoclypeus without sinuation; punctation moderately dense, coarse (puncture diameter 2 times distance between them). Antennae moderately long, with 3 apical antennomeres extending beyond base of pronotum. Pronotum transverse, widest after middle, narrowed from base to anterior margin, 1.5 times as wide as long, 1.7 times as wide as head; disc moderately convex, lateral sides visibly flattened in basal half; ratio of pronotal width at base, greatest width, and width at anterior margin 8.0:8.3:5.1. Elytra elongate oval, 1.5 times as long as wide, 1.2 times as wide and 2.8 times as long as pronotum, 2 times as wide as head; convex, widest at middle, 1.3 times as wide as pronotum. Venter: prosternal process weakly convex, without cone-shaped tooth apically. Protrochanters with 3 long setae, meso- and metatrochanters with 1 long and several short setae.

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