NORTH AMERICAN BUPRESTID BEETLES 183 



Head with the front rather wide, feebly convex, lateral margins 

 nearly parallel from top to bottom, broadly, but not deeply concave 

 in front, and with a feeble narrow, longitudinal groove on the 

 occiput; surface coarsely, densely, punctate, somewhat rugose, and 

 rather densely, uniformly clothed with moderately long, semierect, 

 whitish hairs ; epistoma slightly transverse between the antennae, and 

 broadly, deeply, arcuately emarginate in front; antennae extending 

 nearly to middle of pronotum, serrate from the fourth joint, and 

 the outer joints slightly longer than wide; eyes large, broadly 

 oblong, and about equally rounded above and beneath. 



Pronotum nearly one-third wider than long, about equal in width 

 at base and apical third, and the apex slightly narrower than base; 

 sides arcuately expanded from apical angles to apical third, then 

 nearly parallel or feebly sinuate to the posterior angles, which are 

 acute, and projecting slightly outward; when viewed from the side 

 the marginal carina is strongly sinuate, and bent downward near 

 the base, the submarginal carina straight, the two carinae widely 

 separated anteriorly, and connected to each other at the base ; anterior 

 margin feebly sinuate, and the median lobe scarcely developed ; base 

 feebly, arcuately emarginate from the posterior angles to scutellum, 

 in front of which it is broadly subtruncate ; disk moderately convex, 

 with a broad, shallow median depression, which is indistinct ante- 

 riorly, but more deeply depressed in front of the scutellum, a 

 rather deep, oblique depression on each side along lateral margin 

 at middle, and with a broad elevation replacing the prehumeral 

 carnia; surface coarsely, but not very closely punctate on median 

 part, becoming rugose toward the sides, and rather densely, uniformly 

 clothed with rather long, semierect, whitish hairs. Scutellum not 

 transversely carinate, but the surface finely, densely reticulate. 



Elytra about equal in width to the pronotum at base, and slightly 

 wider at base than just behind the middle; sides slightly, arcuately 

 expanded behind the base, broadly, arcuately constricted in front 

 of middle, feebly expanded behind the middle, then arcuately nar- 

 rowed to the tips, which are separately, narrowly rounded, and 

 minutely, serrulate; sides of abdomen narrowly exposed above; 

 disk slightly convex, basal depressions broad and shallow, and each 

 elytron with three fine, irregular, vague costae extending from near 

 base to behind the middle, one along the suture and two on the 

 disk; surface finely, densely punctate, more or less imbricate, and 

 rather densely, uniformly clothed with short, recumbent, whitish 

 hairs, except on the costae. 



Abdomen beneath rather densely, finely punctate, the punctures 

 more distant at the middle, somewhat transversely rugose on basal 

 segment, and rather densely clothed with short, recumbent, white 



