Longhorn Beetle (mating)

Elongate-ovate, small to moderate-sized, ranging from about 9–19 mm in length. Integument generally dark brown speckled with whitish pubescence. Head with frons elongate, about as wide as width of 1 1/2 to two lower eye lobes; frons surface roughly sculptured or not. Eyes with lower lobes ovate-oblong. Genae elongate, about as tall or shorter than lower eye lobes. Antennal tubercles prominent, moderately separated; tubercles armed at apex with short, blunt horn; antennae about as long (females) or 1 1/3 times as long (males) as overall body length; scape clavate, about as long or longer than antennomere IV; antennomere III strongly sinuate, longer than scape and antennomere IV; antennae annulate. Pronotum transverse, roughly conical, wider at base, without lateral tubercles. Prothorax with sides whitish. Elytra with sides roughly parallel to slightly attenuate; elytral apices individually rounded; elytra with large whitish maculae at humeri and near middle; base of elytra with two prominent tubercles at humeri. Basal 1/3 of elytra sparse to dense punctation, surface granulate-punctate. Procoxae without projection (females) or with small acute projection (males). Mesosternal process with apex deeply emarginate. Metafemora moderate in length, about 1/3 as long as elytra.

The combination of the following characters will help to distinguish this genus: roughly conical pronotum without lateral tubercles; prothorax with sides whitish; base of elytra with two prominent tubercles at humeri; and elytra with large whitish maculae at humeri and near middle. (http://cerambycids.com/oncidid/OncidID-Cipriscola.html)