Form slightly elongate, moderately convex. Color dark piceo- castaneous. Integuments above finely alutaceous, rather feebly shining. Head and thorax very finely and rather sparsely punctured; elytra as given in the key. Head three-fifths the width of thorax, twice as wide as long. Preocular lobe not prominent; clypeal suture distinctly impressed. Antennae rather long, surpassing the anterior coxae. Thorax about three-fourths wider than long, as wide as or slightly wider than the elytra; apex feebly emarginate; anterior angles rounded; sides moderately arcuate and convergent; posterior angles rounded. Base finely margined medially; sides scarcely explanate. A fine and much-abbreviated median line, feebly and broadly impressed. Elytra somewhat more than twice the length of thorax, slightly more than one-half longer than wide: sides distinctlv convergent behind the middle; suture broadly and feebly elevated behind the middle ; apices truncate and angles rounded as usual. Length, 9 mm. ; width, 4 mm.
- Type.—Male. San Diego County, California. Morena Dam. July 4, 1907. G. H. F. Collection of H. C. Fall.
- Allotype.—Dewey, Arizona. July 10-20, 1917. Collection of E. C. Van Dyke.