NORTH AMERICAN BUPRESTID BEETLES 125 



are feebly, arcuately rounded, and with a rather deep, longitudinal 

 groove extending from the occiput to middle of front; surface 

 coarsely, densely punctate in front, becoming more or less longitudi- 

 nally rugose on the occiput, and sparsely clothed with regularly 

 placed, moderately long, recumbent whitish hairs; epistoma narrow 

 between the antennae, and broadly, arcuately emarginate in front; 

 antennae extending to middle of pronotum, serrate from the fourth 

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

 more broadly rounded beneath than above. 



Pronotum about one-half wider than long, the base and apex about 

 equal in width, and widest at middle ; sides rather strongly, arcuately 

 rounded ; when viewed from the side the marginal carina is strongly 

 sinuate, the submarginal carina moderately sinuate, the two carinae 

 narrowly separated anteriorly, and connected to each other at base; 

 anterior margin moderately sinuate, with a broadly rounded median 

 lobe; base rather strongly emarginate at middle of each elytron, the 

 median lobe broadly rounded, and subtruncate in front of the scutel- 

 lum ; disk moderately convex, with a broad, moderately deep depres- 

 sion in front of scutellum, from one to three small depressions placed 

 transversely on anterior part of disk (some of these usually in- 

 distinct), a broad, deep depression on each side along lateral margin, 

 and without prehumeral carinae; surface coarsely, transversely 

 rugose on the median part, with numerous fine punctures between the 

 rugae, becoming coarsely punctate toward the sides, and sparsely 

 clothed with regularly placed, short, recumbent, whitish hairs. 

 Scutellum feebty, transversely carinate, and the surface finely 

 reticulate. 



Elytra slightly wider than pronotum at base, about equal in width 

 at base and apical third; sides nearly parallel for a short distance 

 behind the base, broadty, arcuately constricted in front of middle, 

 arcuately rounded at apical third, then obliquely narrowed to the 

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

 sides of abdomen broadly exposed above; disk feebly flattened, with- 

 out longitudinal costae, sutural margins slightly elevated posteriorly, 

 and with broad, deep basal depressions; surface finely, densely im- 

 bricate-punctate, and sparsely clothed over entire surface with uni- 

 formly placed, short, recumbent, whitish hairs. 



Abdomen beneath finely and sparsely punctate along the middle, 

 more densely toward the sides, becoming somewhat rugose at sides of 

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

 whitish pubescence; first segiment feebly flattened at middle, the 

 second with a deep, smooth groove, which has the sides nearly 

 parallel, and extending from the anterior margin to apical third; 

 last segment broadly rounded at apex; vertical portions of the seg- 



