NORTH AMERICAN BUPRESTID BEETLES 185 



Pronotum as long as wide, slightly narrower at base than apex, 

 and widest near apical angles; sides feebly obliquely narrowed from 

 apical angles to near the base, where they are vaguely sinuate ; pos- 

 terior angles rectangular; when viewed from the side the marginal 

 carina is feebly sinuate, the submarginal carina nearly straight, and 

 the two carinae narrowly separated for their entire length ; anterior 

 margin strongly sinuate, with the median lobe strongly, broadly 

 rounded ; base feebly emarginate at middle of each elytron, with the 

 median lobe broadly rounded and subtruncate in front of scutellum; 

 disk moderately convex, with a broad, shallow median depression 

 extending from the anterior margin to base, a broad, shallow depres- 

 sion on each side, extending obliquely backward from the lateral 

 margin at middle to the base, and with a broad elevation replacing 

 the prehumeral carina; surface coarsely, sparsely punctate, more or 

 less rugose toward the sides, and rather densely, uniformly clothed 

 with long, recumbent, white hairs. Scutellum not transversely 

 carinate, but the surface finely, vaguely reticulate. 



Elytra about as wide as pronotum at base, and equal in width at 

 base and behind middle; sides nearly parallel to apical third (very 

 broadly, feebly constricted in front of middle), then obliquely nar- 

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

 and feebly serrulate; sides of abdomen narrowly exposed above; 

 disk slightly convex, the basal depressions broad and shallow, sutural 

 margins slightly elevated posteriorly, and each elytron with three 

 smooth vague costae, extending from base to behind the middle, one 

 along the sutural margin, and two on the disk ; surface rather coarsely 

 imbricate-punctate, slightly rugose near base, and rather densely, 

 uniformly clothed (except on costae) with short, recumbent, white 

 hairs. 



Abdomen beneath sparsely, finely punctate at middle, punctures 

 denser toward sides where the surface is transversely rugose, and 

 rather densely clothed with moderately long, recumbent, white hairs ; 

 first segment strongly convex and without a median groove; last 

 segment broadly rounded and strongly serrulate at apex; vertical 

 portions of the segments not conspicuously pubescent ; suture between 

 first and second segments distinctly indicated at the sides ; pygidium 

 distinctly longitudinally carinate, but the carina not projecting. 

 Presternum sparsely, finely punctate, and densely clothed with long, 

 fine, erect hairs; prosternal lobe broad, strongly declivous, broadly 

 and rather deeply, arcuately emarginate in front, and forming a 

 rounded lobe on each side of the emargination ; prosternal process 

 broad, slightly concave, and the sides parallel to behind the coxal 

 cavities, then abruptly narrowed to the apex, which is rather acute. 

 Tibiae slender, the anterior pair slightly arcuate, and the anterior 



