84 GEO. H. HORN, M. D. 



coarse at the sides aucl usually more or less wrinkled. Clypeus moderately 

 impressed in front, broadly feebly emarj^inate, on each side broadly rounded, 

 sides feebly arcuate, jieu^' moderately prominent, subacute. Thorax one and a 

 half times as wide as long, sides feebly arcuate, hind angles rounded, base arcu- 

 ate with deep marginal line, disc moderately convex, punctuation moderately 

 coarse, sparsely and irregularly placed, a little closer near the sides, very little 

 finer toward the front, with finer punctures everywhere intermixed. Elytra as 

 wide at base as thorax, humeri dentate, sides nearly parallel, disc striate, strise 

 punctured, intervals slightly convex, smooth, more coarsely crenate on the inner 

 side. Mesosteruum densely inmctured and opaque, indistinctly carinate between 

 the coxa?. Metasternum with a few coarse punctures at middle, smooth at the 

 sides. Abdomen with few coarse punctures at the sides, moderately smooth at 

 middle, the segments crenate in front. Anterior tibife tridentate externally, 

 obsoletely crenate above. Posterior femur almost entirely smooth, the mar- 

 ginal line short or absent, the tibia with distinct accessory spinule, the first tarsal 

 joint a little longer than the long spur. Length .18-.20 inch ; 4.5-5 mm. 



This species varies a little in the scul])tiire of the head. In some 

 the sides of the clypeus are simply coai"sely punctured like the occi- 

 put, while in others the same region is distinctly wrinkled. The 

 marginal line of the posterior feuuir varies from a fine impression 

 about one-fifth of the length of the femur to a punctiform depression, 

 and in nearly half the specimens is entirely absent. 



From strigatus this species is known by the frontal sculpture and 

 its extremely feeble frontal line ; from i^tercoraior by the latter char- 

 acter and by the coarse punctures of the thorax extending to the 

 apical marginal ; from the next species the differences are less de- 

 scribable and will be given under it. 



The form supposed to be strigatus by Harold, is that with the sides 

 of the clypeus punctate and not wrinkled. 



Occui's from the New England States to the Rocky Mountains, 

 Texas and Sonora. 



A. califoriiiciis n. sp. — Oblong, parallel, moderately elongate and convex, 

 piceous, shining; legs reddish brown. Antennfe pale rufotestaceous. Head 

 moderately convex, punctures coarser but sparser along the occiput, very fine 

 and sparse at middle of front, the anterior portion of clypeus and sides trans- 

 versely wrinkled. Clypeus impressed in front ; broadly, but feebly emarginate, 

 the angles broadly rounded, sides oblique, feebly arcuate, gense moderately promi- 

 nent, obtuse. Thorax one and a half times as wide as long, not narrower poste- 

 riorly, sides feebly arcuate, marginal line deep, disc moderately convex, the 

 ])uuctures very coarse, but sparsely placed, a little closer near the front angles, 

 more sparse at middle near the base, a little finer along the front margin, the 

 finer intermixed punctures extremely minute. Elytra as wide at base as the 

 thorax, humeri distinctly dentate, sides very slightly arcuate, disc deeply striate 

 strije finely not closely punctate, intervals flat, feebly convex at apex, smooth, 

 the inner edges alone crenate. Mesosternum opaque, densely finely punctured. 



