Length 21 mm., breadth at the shoulders 8 mm.; length of the antennae 27 mm. Glabrous; brick red, with the labrum, apical joint of the palpi, apex of the mandibles, eyes, antennae, apex of the thoracical spines, legs (except the coxae and the intermediate and posterior trochanters), scutellum and extreme apical margin of the ventral segments, black, and the apical fourth of the elytra dark steel blue with a faint violet hue; the under surface of the base of the third and following joints of the antennae with a spot of whitish pubescence.