This magnificent species, the most robust one known up to this day, may easily be recognized by the shape of the strongly porrected clypeus and by the tooth on the outer margin of the under surface of the mandibles near to the base. Length 54 mm., breadth at the shoulders 14 mm. — The colour of the insect is bronze green with faint coppery tinges, the elytra and upper side of the femora pale yellowish brown with a metallic green and coppery hue; the teeth of the mandibles glossy black, and the palpi and antennae dark pitchy brown; the thickened outer margin of the elytra and the elytral epipleurae are metallic green, the sutural margins narrowly edged with pitchy brown.