Measurements of mandible strengths of break resistance. A T. dichotomus horns were fixed in a small vice B wire was hung on the tip of the mandible.

  Part of: Ichiishi W, Shimada S, Motobayashi T, Abe H (2019) Completely engaged three-dimensional mandibular gear-like structures in the adult horned beetles: reconsideration of bark-carving behaviors (Coleoptera, Scarabaeidae, Dynastinae). ZooKeys 813: 89-110.