Mandible-weaponry

Guides

• Gnatocerus guatemalensis

  Gnatocerus guatemalensis is a species of darkling beetle in the family Tenebrionidae. The genus Gnatocerus is known for species with enlarged mandibles in males, which function as weapons in male-male combat for mating opportunities. This species is native to Mexico and belongs to a genus closely related to the well-studied flour beetle Tribolium.

  ColeopteraTenebrionidaeGnatocerusMexicomandible-weaponrymale-dimorphism