12 GEO. H. HORN, M. D. 



fovea on each side; surface shining, coarsely and deeply but not very densely 

 punctured except in the lateral fovese, sides with yellow border, margin narrow, 

 not visible from above, inferior in the greater part of its extent. Elytra as 

 wide at base as thorax, umbone feebly prominent, sides gradually narrowing 

 to apex and acutely serrate, disc feebly depressed, striate, striae very faint at 

 middle near base, but with coarse punctures closely placed, intervals flat except 

 externally, uniseriately punctulate; surface rather brightly cupreous and with 

 three bands of yellow interrupted at middle, the sub-basal oblique, the others 

 transverse, also a small spot on the margin near the tip. Body beneath bril- 

 liantly cupreous, sparsely hairy. Prosternum distinctly trisinuate in front, 

 sparsely punctured. Abdomen sparsely and rather finely punctate, last ven- 

 tral with scarcely any trace of subapical transverse carina. Length .32 inch; 

 8 mm. 



Two specimens St. (jreorge, Utah, collected by Dr. Edw. Palmer. 



A. Hepburnii, Lee. — (PI. I, fig. 12.) Form moderately robust, subde- 

 pressed, sparsely clothed with grey and black hair intermixed, color piceous 

 distinctly bronzed, thorax with yellow side margin, elytra with lateral and 

 subsutura) longitudinal stripe united by transverse band at the middle of the 

 elytra, two transverse bands interrupted at middle and subapical spot yellow. 

 Head coarsely and moderately densely punctured, front very feebly impressed, 

 vertex with feeble carina. Thorax nearly twice as wide as long, apex feebly 

 emarginate and slightly lobed at middle, base truncate, sides very feebly arcu- 

 ate or nearly straight, gradually divergent to base, margin very narrow, not 

 visible from above except in front, posteriorly inferior; disc with median 

 triangular impression and a rather deep but broad lateral oblique impression 

 terminating in a fovea posteriorly; surface rather coarsely but not densely 

 punctured at middle, more densely at the sides which are rather broadly 

 margined with yellow. Elytra as wide as the thorax, umbone feeble, sides 

 feebly narrowing from base, more rapidly at apical third and rather finely 

 serrate; disc subdepressed, finely striate, striae moderately coarsely but not 

 very closely punctured, intervals flat, uniseriately punctate; surface orna- 

 mented with yellow as follows: a lateral and a subsutural irregular stripe 

 which extend to the middle of the elytra and united by a transverse band, 

 two irregular transverse bands posterior to the latter interrupted at the suture, 

 and a subapical spot. Body beneath dark aeneous, sparsely clothed with grey- 

 ish hair. Prosternum in front distinctly trisinuate, sparsely punctured at 

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

 last ventral with feeble trace of subapical transverse carina. Length .40 inch ; 

 30 mm. 



Occurs in California in the regions adjacent to the western base of 

 the Sierra Nevada Mountains. 



ACM^ODER^ EMARGINATE. 



The thorax is emarginate above, the anterior angles cover a portion 

 of the eyes, the prosternum is shortened, its alse not attaining the 

 angles, the anterior margin usually straight sometimes broadly but 

 very feebly emarginate from angle to angle. 



The species are few in number and are as follows : 



