A new species of Ululodes owlfly from the Chiricahua Mountains of southeast Arizona is described. Support for the evolutionary independence of the species from congeners is established along two lines of evidence: statistical measures of distances among COI sequences and comparative anatomy. The new species, U. chiricahuensis, is characterized via formal description and diagnosis, images, and a distribution map. A key to the owlfly species of Cave Creek Canyon is presented. Competing hypotheses for the biogeographic origins of U. chiricahuensis are discussed, as well as possible tests for their resolution.