"Scarab beetle"

Scarab of Ancient Egypt
Public DomainScarab of Ancient Egypt - Credit: Stavely
Loosely, any of a huge family of beetles that number roughly 30,000 species worldwide, but here, referring to the fact that ancient Egyptians revered them as sacred and often represented them in amulets and other works of art. The scarab beetle god Khepera was thought to push the setting sun along the sky in the same way that earthbound scarab beetles (also familiarly known as dung beetles) roll balls of dung along the ground and into their burrows (whereupon the females lay their eggs on the balls so that the hatched larvae can feed on them). The lightning-rod salesman’s product apparently has a representation of a sacred Egyptian scarab on it.