NORTH AMERICAN BUPRESTID BEETLES 321 



at the middle, and without a median depression; surface finely, 

 densely granulose, slightly rugose, especially on occiput and behind 

 the epistoma, and sparsely, uniformly clothed with short, recumbent, 

 white hairs; epistoma slightly transverse between the antennae, 

 broadly, deeply, arcuately emarginate in front, and the clypeal 

 suture distinct; antennae extending to middle of pronotum, serrate 

 from the fifth joint, and the outer joints about as wide as long; eyes 

 large, broadly oval, and equally rounded above and beneath. 



Pronotum nearly as long as wide, equal in width at base and apex, 

 and widest just behind the middle; sides feebly, obliquely expanded 

 from apical angles to behind middle, then feebly, arcuately rounded 

 to the posterior angles, which are rectangular ; when viewed from the 

 side the marginal and submarginal carinae are feebly sinuate, rather 

 narrowly separated anteriorly, and connected to each other behind 

 the middle ; anterior margin strongly sinuate, the median lobe broadly 

 rounded and strongly produced ; base arcuately emarginate at middle 

 of each elytron, the median lobe feebly produced, and subtruncate in 

 front of scutellum; disk moderately convex, without a median de- 

 pression, but vaguely, broadly, transversely depressed along basal 

 half, with a moderately deep depression on each side along lateral 

 margin, and with sharply elevated, straight, prehumeral carinae; 

 surface very finely, distinctly, and obliquely rugose at middle, finely, 

 sparsely punctate between the rugae, and not pubescent. Scutellum 

 strongly, transversely carinate, and the surface finely, densely 

 reticulate. 



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

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

 hind base, vaguely constricted in front of middle, feebly expanded 

 behind middle, then obliquely narrowed to the tips, which are sepa- 

 rately, narrowly rounded, and feebly serrulate; sides of abdomen 

 rather broadly exposed above; disk slightly flattened, feebly de- 

 pressed along the sutural margins, which are slightly elevated behind 

 the middle, and with broad, moderately deep basal depressions; sur- 

 face finely, densely, imbricate-punctate, and sparsely clothed with 

 short, inconspicuous white hairs. 



Abdomen beneath finely, sparsely punctate, the punctures connected 

 transversely by sinuate lines, which are coarser on basal segment, 

 and sparsely clothed with short, recumbent, white hairs; first and 

 anterior part of second segment broadly, feebly, longitudinally con- 

 cave, and clothed with longer and denser hairs at the middle ; vertical 

 portions of segments not densely pubescent; pygidium coarsely, 

 sparsely punctate, longitudinally carinate anteriorly, but the carina 

 not projecting. Presternum finely, sparsely punctate, and rather 

 densely clothed with long, erect, white hairs; prosternal lobe broad, 

 moderately declivous, and broadly rounded or subtruncate in front, 



