NORTH AMERICAN BUPRESTID BEETLES 263 



a more or less aeneous tinge, and each elytron ornamented with three 

 pale yellow pubescent spots; beneath bronzy green, with a feeble 

 cupreous reflection, and more shining than above. 



Head with the front rather wide, and slightly wider at top than at 

 bottom, the lateral margins feebly, obliquely expanded from bottom 

 to top, broadly, rather deeply concave on vertex, and with a feeble 

 median groove extending from occiput to epistoma ; surface sparsely, 

 coarsely punctate, irregularly rugose, and rather sparsely clothed 

 anteriorly with long, recumbent, yellowish pubescence; epistoma 

 slightly transverse between the antennae, and broadly, rather deeply, 

 arcuatery emarginate in front; antennae extending nearly to middle 

 of pronotum, serrate from the fifth joint, and the outer joints about 

 as wide as long; eyes large, broadly oblong, and about equally 

 rounded above and beneath. 



Pronotum nearly as long as wide, feebly narrower at base than 

 apex, and widest near middle; sides vaguely rounded from apical 

 angles to behind middle, then more strongly narrowed to near the 

 base, where they are strongly sinuate, and the posterior angles rec- 

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

 sinuate, the submarginal carina feebly sinuate, the two carinae 

 widely separated anteriorly, and connected to each other near base; 

 anterior margin strongly sinuate, and the median lobe strongly, 

 broadly rounded ; base slightly emarginate at middle of each elytron, 

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

 lum, disk moderately convex, with two broad, vague median depres- 

 sions, a broad, deep, oblique depression on each side along lateral 

 margin, and with obtusely rounded, moderately long, sinuate pre- 

 humeral carinae; surface obsoletely granulose, densely, coarsely 

 rugose, the rugae transverse at middle but becoming oblique toward 

 the sides, sparsely, finely punctate between the rugae, and sparsely 

 clothed at the sides with short, inconspicuous hairs. Scutellmn 

 transversely carinate, and the surface finely, densely reticulate. 



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

 base and behind middle; sides nearly parallel for a short distance 

 behind base, feebly, broadly constricted near middle, broadly arcu- 

 ately expanded behind middle, then narrowed to the tips, which are 

 separately, narrowly rounded, and strongly serrulate; sides of ab- 

 domen broadly exposed above; disk slightly flattened, sutural mar- 

 gins elevated posteriorly, and with broad, moderately deep basal 

 depressions; surface coarsely, densely imbricate-punctate, sparsely 

 clothed posteriorly with short, inconspicuous, white hairs, and each 

 elytron ornamented with sparsely pubescent spots as follows: One 

 in basal depression, an elongate one in front of middle, and the 

 other at apical third. 



