The stem of the dynastine tribal name Oryctini is derived from the Greek oryktes, meaning digger. World-wide in distribution, many genera in southamerica. Some are serious pests. Labial palpi inserted at the sides of the mentum; mandibles prominent, usually toothed externally; head more or less tuberculate, alway with some elevations, sometimes armed with a horn; thorax usually tuberculate or horned; clypeus not parabolic, but rather triangular, reflexed with one or two small apical teeth.