Form slightly elongate, rather depressed. Color rufo-piceous. Integuments finely alutaceous, rather feebly shining. Head and thorax finely and rather sparsely punctured, sparser medially ; elytra as given in the key. Head about three-fifths the width of the thorax, twice as wide as long. Preocular lobes prominent, strongly rounded; clypeal suture distinct. Antennae (tips broken off in the type) probably long, surpassing the anterior coxae. Thorax rather more than twice as wide as long ; apex very feebly emarginate ; sides broadly arcuate and convergent; posterior angles rounded; base not margined medially; sides scarcely explanate; median line subobsolete. Elytra more than two and one-half times the length of the thorax, somewhat more than one-half longer than wide; sides distinctly convergent from the base; suture broadly and feebly elevated near the apex ; apices rather less strongly truncate than usual. Length, 9 mm. ; width, 3.75 mm. Male.—Densely pubescent spots on the fourth and fifth ventral segments about one-sixth the width of the segment. Five setigerous punctures either side at the apical margin of the last segment.
Type.—Male. Stockton, Utah. August 1-7 (Spalding). Collection of the author.