Cerambycoidea, Scaraboidea and Buprestoidea are superfamilys of Polyphaga. Polyphaga comprises 144 families in 16 superfamilies, and displays an enormous variety of specialization and adaptation, with over 300,000 described species. Polyphagan beetles do not have the pleuron of the prothorax externally visible; instead, remnants of the propleuron are present internally as a "cryptopleuron". » »