Most beetles have the capacity to bite humans, but the majority are peaceful creatures that are not inclined to bite. Scientists estimate that the world is home to between 4 million and 8 million beetle species, making broad generalizations difficult.
According to the University of Wisconsin Milwaukee, some beetles, such as long-horned beetles and sap beetles, bite hard; however, such bites are of little consequence. The vast majority of beetle species lack venom, so the bite is effectively no more dangerous than a small, sharp pinch. While beetles all have biting jaws, only a few beetles have jaws that are large and strong enough to pierce human skin.