NORTH AMERICAN BUPRESTID BEETLES 151 



antennae extending to middle of pronotum, serrate from the fourth 

 joint, and the outer joints about as wide as long; eyes large, elongate, 

 and slightly more broadly rounded beneath than above. 



Pronotum one-half wider than long, about equal in width at base 

 and apex, and widest near middle; sides arcuately rounded from 

 apical angles to base, slightly more strongly posteriorly ; when viewed 

 from the side the marginal carina is strongly sinuate, the submar- 

 ginal carina feebly sinuate or nearly straight, the two carinae widely 

 separated anteriorly, and connected to each other behind middle; 

 anterior margin strongly sinuate, the median lobe rather strongly, 

 broadly rounded; base rather acutely emarginate at middle of each 

 elytron, the median lobe broadly rounded, and truncate in front of 

 scutellum ; disk moderately convex, with two more or less distinct 

 median depressions, the posterior one broader and deeper, a small 

 vague depression on each side of middle at apical third, a broad, 

 moderately deep depression on each side along lateral margin, and 

 Avith sharply defined, arcuate, prehumeral carinae ; surface obsoletely 

 granulose, densely, deeply, transversely rugose, finely, sparsely punc- 

 tate between the rugae, and clothed with a few short, inconspicuous 

 hairs. Scutellum strongly, transversely carinate, and the surface 

 finely, densely reticulate. 



Elytra wider than pronotum at base, and slightly wider at base 

 than behind the middle; sides nearly parallel for a short distance 

 behind base, broadly, arcuately constricted in front of middle, feebly, 

 broadly expanded behind middle, then obliquely narrowed to the 

 tips, which are separately, narrowly rounded, and strongly serrulate ; 

 abdomen rather broadly exposed above ; disk feebly flattened, some- 

 times with a vague longitudinal costa on each elytron, and with 

 broad, moderately deep basal depressions; surface coarsety but not 

 deeply imbricate-punctate, more or less rugose anteriorly, and each 

 elytron ornamented with three small pubescent spots, one in basal 

 depression, one in front of middle, and the other at apical third. 



Abdomen beneath finely, densely granulose, rather densely, finely 

 punctate at middle, more densely toward the sides, becoming rugose 

 on the basal segment, and sparsely clothed with short, recumbent, 

 whitish hairs, which are more densely placed toward the sides; first 

 segment flattened or feebly concave at middle; second segment with a 

 rather broad, moderately deep, smooth depression at middle, the 

 depression extending from anterior margin to apical third, and 

 deeper anteriorly; last segment broadly truncate at apex; vertical 

 portions of segments densely but not conspicuously pubescent: 

 pygidium coarsely punctate, strongly carinate, the carina strongly 

 projecting, and truncate at apex. Prosternum densely, coarsely ru- 

 gose, and densely clothed with moderately long, semi erect, whitish 



