A new rock-dwelling (petrophilous) tiger beetle, Amblycheila katzi Duran & Roman, sp. nov. is described from calcareous canyons and steep hillsides in the Trans-Pecos region of western Texas. It is distinguished from all other Amblycheila based on multiple morphological characters, biogeography, and ecology. A revised key to the genus Amblycheila is provided.
Keywords: Caraboidea; Omini; Chihuahuan Desert; Nearctic; new species; petrophile; taxonomy.
Daniel P. Duran, Stephen J. Roman.