Body cylindric, subopaque and pale ferruginous throughout; beak in the male rather thick, evenly arcuate and as long as the prothorax, densely sculptured; prothorax as long as wide, the sides parallel and nearly straight, gradually rounding from slightly before the middle to the pronounced apical constriction; apex three-fourths as wide as the base, the basal lobe small and feeble; punctures coarse and dense, the smooth median line wanting; scutellum small, rounded, but little wider than long; elytra slightly more than one-half longer than wide, distinctly wider than the prothorax and three-fourths longer, the sides parallel and nearly straight, oblique in apical two-fifths to the rather obtuse apex, the humeri distinctly prominent; grooves very coarse and coarsely, closely punctate, the intervals not as wide as the grooves, opaculate but not evidently punctate; under surface coarsely, closely punctate and dull, the abdomen more shining, with the punctures small and well separated, larger and closer laterad, becoming somewhat coarse at the sides of the first segment; there is a deep elongate basal impression in the male, extending well upon the second segment; legs short. Length (male) 2.65 mm.; width 0.8 mm. Arizona (locality unrecorded). 

The male type of this species differs from the male of crenatus in its more abbreviated form and more elongate prothorax, this being somewhat shorter than wide and less than half as long as the elytra in crenatus, where the strial punctures are coarser and more widely separated than in arizonicus; it also differs from crenatus in its shorter legs and rather deeper and more acutely defined abdominal impression in the male, as well as in the closer abdominal punctures.