Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sponsor is a genus of beetles in the family Buprestidae. Polyphaga is the largest and most diverse suborder of beetles; the name is derived from two two Greek words: poly-, meaning 'many', and phagein, meaning 'to eat', so the suborder is called the eaters of many things . Polyphaga comprises 144 families in 16 superfamilies, and displays an enormous variety of specialization and adaptation, with over 300,000 described species, or approximately 90% of the beetle species so far discovered.