8 GEO. H. HORN, M. D. 



coarsely and densely at sides. Last ventral with distinct double apical margin. 

 Length .40 inch; 10 mm. 



I have seen two specimens from Arizona, one given me by Mr. C. 

 V. Riley, the other in the cabinet of Mr. Ulke. 



The elytral markings of this species belong to the same type as 

 that of the next species. 



A. flaTOmarginata, Gray. — (PI. I, fig. 4.) Form moderately elongate, 

 gradual!}' narrowed from base of elytra to tip, moderately convex, color piceous 

 shining, without metallic lustre above, elytra with lateral space and a trans- 

 verse band at apical third reddish yellow. Head coarsely punctured, front 

 slightly impressed and with coarser punctures forming strigee, vertex distinctly 

 carinate. Thorax rather more than twice as wide as long, wider at base than 

 the elytra, apex emarginate and with a distinct post-marginal impression, base 

 truncate, sides moderately arcuate and rather rapidly wider posteriorly, hind 

 angles obtuse, margin distinctly visible from above in its entire length, rather 

 broad and distinctly reflexed; disc with broad and moderately deep median 

 triangular impression and a lateral fovea on each side, surface rather coarsely 

 punctured, rather more densely toward the sides which are rather broadly 

 margined with yellow. Elytra rather more than twice as wide as long, gradu- 

 ally narrowed to apex, umbone moderately prominent, sides serrate, disc slightly 

 depressed with rows of punctures in the strise and intervals nearly equal, those 

 at the sides coarser in the strise, color piceous very rarely with any bronze 

 lustre colored with yellow as follows; a marginal band extending from the 

 base to. beyond the middle and becoming gradually broader posteriorly and 

 enclosing a small black spot near its end, also a broad band of reddish yel- 

 low at apical third enclosing three spots, one at each end, the other sutural. 

 Body beneath bluish-green shining, sparsely pubescent. Prosternum in front 

 trisinuate moderately densely punctate. Abdomen sparsely punctate. Last 

 ventral without trace of double margin or carina at tip. Length .50 inch ; 

 12.5 mm. 



This species well known in nearly all collections occurs in south- 

 western Texas. 



A. macra, n. sp. — (PI. I, fig. 5.) Form moderately elongate, feebly de- 

 pressed, color piceous with distinct coppery bronze lustre, thorax with sides 

 yellow, elytra with four slender, irregular transverse fascise. Head coarsely 

 punctured, front feebly ini})ressed, vertex with distinct carina. Thorax not 

 twice as wide as long, apex emarginate, base truncate and scarcely wider than 

 the elytra, sides moderately arcuate, margin visible from above and slightly 

 reflexed, disc with median triangular and on each side an oblique impression 

 terminating in a fovea near the base, surface rather coarsely, moderately densely 

 and equally punctured, sides narrowly yellow. Elytra rather more than twice 

 as long as wide, gradually narrowed from base to apex, sides serrate near the 

 tip; disc feebly depressed, umbone feeble, and with strise of rather coarse 

 punctures finer at middle, intervals narrow and with a single series of fine 

 punctures, the thiid and fifth more convex for a short distance at base, orna- 

 mented with yellow arranged in four narrow, transverse, rather irregular bauds, 

 one at middle, another between this and the base and two others in the posterior 

 third, the third interval also bears a small spot near the base and there is one 



