Length: male, 1% in.; female, 2 in.; fore margin of pronotum concave; fastigium broad; styles on subgenital plate small, cerci slender. Adults taken in September. (Hebard, 1932a, p. 322.) The song of this species is quite distinct from that of rhombifolium. Rarely seen in its natural habitat because it lives in the tops of oak trees. Taken at lights by Tinkham. Upper Sonoran Zone of southern Arizona east to the Baboquivari Mountains and north to Kingman (Hebard). Arizona to California and Lower California.