AMERICAN COLEOPTERA. 7 



A. opaCMla. Lee— (PI. I, fig. 2.) Form moderately elongate, sub-de- 

 pressed, gradually narrower from base of thorax to tip of elytra, color nearly 

 black, mof^erately shining, thorax margined with yellow, elytra with a mar- 

 ginal and discal row of yellow spots, and two bands at apical fourth slightly 

 red, surface sparsely clothed with erect black hair. Head coarsely and moder- 

 ately densely punctured, front scarcely impressed vertex distinctly carinate. 

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

 arcuate rapidly wider posteriorly, hind angles rounded, margin moderately 

 wide, visible in its entire extent from above and distinctly reflexed ; disc with 

 broad, shallow, median triangular impression and a fovea on each side near the 

 base, surface sparsely punctured at middle, more densely and coarsely at the 

 sides. Elytra narrower at base than the thorax, gradually narrowing from 

 base to apex, sides near the tip moderately serrate, umbone rather small, feebly 

 prominent; disc slightly fluttened and with rows of moderate punctures be- 

 coming much coarser and deeper toward the sides and tip, intervals distinct 

 and with a single series of distant punctures; color black with feeble tinge of 

 bronze and ornamented with yellow in the following manner: a sub-humeral 

 marginal spot, a larger marginal spot at middle, four or five small discal spots 

 in a°ow and two narrow bands near the apex, slightly reddish, interrupted at 

 middle. Body beneath dark greenish bronze, shining, sparsely clothed with 

 whitish hair. Prosternum trisinuate in front, moderately densely punctured, 

 sides of thorax beneath coarsely punctured. Abdomen sparsely punctured at 

 middle, more densely and coarsely at the sides. Last ventral with distinct 

 double margin at tip. Length .42 inch; 10.5 mm. 



The trivial name seeuis rather inapplicable as it is about as shining 

 as any of the species without decided ujetallic surface. 



Several specimens are before me, the type from El Paso, others 



from Arizona. 



A. aniabilii^, n. sp.— (PI. I, fig. 3 ) Form moderately elongate, gradually 

 narrower from base of elytra to tip, color pieeous distinctly bronzed, shining, 

 thorax margined with yellow at the sides, elytra with undulated marginal band, 

 small discal spot, and twosubapical bands yellow, surface sparsely clothed with 

 erect brown hair. Front coarsely but not densely punctured, feebly impressed, 

 vertical carina obsolete. Thorax more tiian twice as wide as long, emarginate 

 at apex, truncate at base, sides moderately arcuate and gradually broader to 

 base, margin visible from above, moderately broad and distinctly refloxed; 

 disc with meilian triangular impression and a fovea on each side near the base; 

 surface rather coarsely but not densely punctured at middle, more densely at 

 the sides which are rather broadly margined with yellow. Elytra narrower at 

 base than the thorax, umbone feeble, sides gradually arcuately narrowed to 

 base, disc slightly depressed and with rows of punctures fine near the suture, 

 coarser at the sides and apex, intervals with a single row of fine punctures, 

 margin near apex moderately serrate; color pieeous distinctly bronzed and 

 ornamented with yellow as follows: a marginal band extending to middle 

 gradually broader posteriorly, the inner edge undulating, a small discal spot at 

 basal third, a small marjiinal spot behind the band, two transverse bands at 

 apical fourth interrui)ted at suture, the posterior band red. Body beneath 

 colored as above. Prosternum trisinuate in front, sparsely punctured, side 

 pieces more coarsely punctured. Abdomen sparsely punctured at middle more 



