Mandible-combat
Guides
Dendrobias mandibularis mandibularis
A large cerambycid beetle in the tribe Trachyderini, notable for males possessing extraordinarily enlarged mandibles used in combat. The nominate subspecies occurs in the southwestern United States and Mexico. Adults are diurnal and frequently encountered on flowering vegetation, particularly Baccharis sarothroides. The species has been subject to taxonomic confusion, with some authorities placing it in the genus Trachyderes.