NORTH AMERICAN BUPRESTID BEETLES 57 



rower and more distinct on the occiput ; surface coarsely punctate, 

 finely granulose, somewhat irregularly rugose on the front, becoming 

 longitudinally rugose on the occiput, and sparsely clothed on the 

 anterior half with short, white pubescence; epistoma rather wide 

 between the antennae, and feebly, broadly, arcuately emarginate in 

 front: antennae extending to about posterior angles of pronotum, 

 serrate from the fourth joint, and all the joints longer than wide; 

 eyes very large, broadly oblong, and about equally rounded above 

 and beneath. 



Pronotum about three-sevenths wider than long, base and apex 

 about equal in width, and widest just in front of middle; sides feebly, 

 arcuately rounded from apex to middle, then obliquely narrowed to 

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

 side the marginal carina is feebly sinuate, and the submarginal carina 

 nearly straight, the two carinae narrowly separated anteriorly, and 

 connected to each other near the base; anterior margin strongly 

 sinuate, with the median lobe broadly rounded and strongly pro- 

 duced; base transversely bisinuate, the median lobe scarcely pro- 

 duced, and arcuately emarginate in front of scutellum; disk mod- 

 erately convex, with two round, more or less distinct depressions 

 arranged longitudinally at the middle, a rather broad depression 

 along lateral margin extending from apical fourth to base, and with 

 sharply defined, slightly arcuate prehumeral carinae. extending from 

 base to near middle; surface densely, transversely rugose, finely 

 granulose. and with numerous fine punctures between the rugae. 

 Scutellum strongly, transversely carinate. and the surface finely 

 reticulate. 



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

 at base and apical third, feebly, broadly, arcuately constricted in 

 front of middle, and arcuately narrowed from apical third to the 

 tips, which are separately, broadly subtruncate, and finely serru- 

 late; sides of abdomen narrowly exposed above; disk slightly flat- 

 tened, sutural margins elevated posteriorly, with broad, moderately 

 deep basal depressions, and with an obsolete longitudinal costa on 

 each side; surface densely, coarsely imbricate-punctate. 



Abdomen beneath coarsely punctate and finely granulose on the 

 basal segments, becoming more finely punctate toward the apex, the 

 punctures connected transversely by fine sinuate lines, and sparsely 

 clothed with short, recumbent, white pubescence; first and second 

 segments flattened or feebly concave along the median line, but not 

 pubescent; vertical portions of the segments not conspicuously 

 pubescent; pygidium rather densely, coarsely punctate, and indis- 

 tinctly carinate at middle. Prosternum finely, densety granulose, 

 and with a triangular space in front densely clothed with long, erect, 



