14 GEO. H. HORN, M. D. 



strise rather coarsely punctured, intervals flat at middle convex at the sides, 

 each with a single row of minute punctures; surface colored as above. Body- 

 beneath dark bronze, sy)arsely clothed with greyish hairs. Prosternum broadly 

 emarginate in front, the alse not attaining the anterior angles, surface sparsely 

 punctured, side pieces more densely and coarsely. Abdomen sparsely punctured, 

 last ventral without trace of subapical carina. Length .44 inch; 11 mm. 



Occurs from the Coast Range of California to western Utah. Its 

 markings resemble Hcphinniu as well as the preceding species, and are 

 verv variable. Specimens very rarely occur with a small yellow spot 

 on the side of the thorax. 



A. slellaris, Chev. — (PI. I, fig. 18.) Form depressed, surface distinctly 

 bronzed, sparsely clothed with erect black hair, elytra with numerous small 

 yellow spots often uniting forming intricate reticulations, sides at tip red. 

 Head densely punctured, front feebly concave, vertex feebly carinate. Thorax 

 usually unicolored, rarely with a small lateral spot, twice as wide as long, apex 

 emarginate, base truncate, sides strongly arcuate, margin moderate, slightly 

 reflexed and visible in its entire extent from above; disc with median tri- 

 angular impression moderately deep at middle posteriorly, lateral oblique 

 impressions moderately deep; surfai^e coarsely puncture<l, rather sparsely at 

 middle, more densely at the sides. Elytra narrower at base than the thorax, 

 umbone moderate, sides gradually narrowed from base to apex, sides moder- 

 ately serrate; disc depressed, striate, striae rather coarsely but not closely 

 punctured, intervals flat with a single series of fine punctures on each ; surface 

 black slightly bronzed with narrow intricate yellow markings, sides at the tip 

 red. Body beneath dark bronze, sparsely pubescent. Prosternum as in connexa. 

 Abdomen rather sparsely punctured, last ventral with distinct double margin 

 at tip. Length .46 inch; 11.5 mm. 



This species is one of the most easily recognizable in our fauna. 

 G he claws of the anterior tarsi have the tooth or lobe nearly as long- 

 as the upper portion of the claw. It occurs in western Texas and 

 also in Mexico. 



A. ornata. Fab. — (PI. I, fig. 15.) Form robust, moderately depressed, 

 sparsely clothed with erect black hair, surface bluish, elytra sparsely maculate 

 with smnll yellow spots, often nearly immaculate. Head coarsely and densely 

 punctured, front with very feeble impression, vertex with distinct carina. 

 Thorax twice as wide as long, apex emarginate, base truncate, sides rapidly 

 broader posteriorly, behind the middle riither strongly arcuate, margin moder- 

 ate, distinctly visible in its entire extent from above; disc with distinct median 

 triangular impression and with oblique lateral impressicm terminating in a 

 fovea at base; surface rather coarsely and deeply punctured, very densely at 

 tlie sides less densely at middle. Elytra narrower at base than the thorax, 

 umbone Tnoderately prominent, sides feebly convergent from base, more rapidly 

 at apical third and serrate; disc with strife less deep than at the sides, striae 

 rather coarsely punctured, less so at middle, intervals flat and with a single 

 row of punctures, those at middle nearly as large as the punctures of the striae. 

 Body beneath metallic blue, sparsely hairy. Prosternum as in connexa. Abdo- 

 men very sparsely punctured, last ventral with feeble subapical transverse 

 carina. Length .31 — .44 inch; 8.5 — 11 mm. 



