Description: Elongate-ovate, small to large-sized, ranging from about 11–23 mm in length. Integument generally dark brown or black with whitish, ferrugineous, and ochraceous pubescence. Head with frons elongate, about as wide as width of 1 1/2 to two lower eye lobes. Eyes with lower lobes ovate-oblong. Genae elongate, variable in size, from distinctly shorter to distinctly taller than lower eye lobes. Antennal tubercles prominent, moderately to narrowly separated; tubercles not armed at apex or armed with a small projection, or with a short, blunt horn; antennae about as long as overall body length, or as much as twice as long; scape clavate, about as long or longer than antennomere IV; antennomere III sinuate, about as long or longer than scape and longer than antennomere IV. Pronotum transverse, conical, wider at base, without lateral tubercles; pronotal disk often with then glabrous area at center. Elytra with sides attenuate; elytral apices individually rounded; elytra generally uniform in coloration or speckled, or with distinct maculae; base of elytra with two prominent tubercles at humeri. Basal 1/3 of elytra with sparse to dense punctation, surface finely punctate, coarsely punctate, or granulate-punctate. Procoxae without projection or with small acute projection, obtuse tubercle, or distinct, curved hook (males). Mesosternal process with apex deeply emarginate. Metafemora long to moderate in length, about 1/2–1/3 as long as elytra.
The combination of the following characters will help to distinguish this genus: sinuate antennomere III; conical pronotum, without lateral tubercles; base of elytra with two prominent tubercles at humeri; deeply emarginate mesosternal process apex; and moderate to long metafemora.
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