Cockroach Mandible - Front View

photo of mandiblediagram of mandible

The cockroach mandible is well sclerotized (hardened), with the heaviest sclerotization occurring at the teeth. The molar area of the mandible is a grinding surface. This type of mandibular structure enables cockroaches to break down a wide variety of materials such as human food scraps, leather, paper, glue and, in some species, wood.