Beetles have chewing mouthparts

What kind of beetles have pincers?

One of the largest families of beetles, Lucanidae, contains over 1,200 species. One of these species is the stag beetle. Stag beetles are the only known beetles to have “pincers,” which are overgrown bones in their lower jaw.

Do stag beetles have pinchers?

Why do stag beetles have pincers? The pincers are actually overgrown mandibles (emerging from the bones of the lower jaw). They have evolved to help the male defeat rivals in the fight over mates during the reproductive season. The females have much smaller mandibles.