NORTH AMERICAN BUPRESTID BEETLES 167 



side along the lateral margin at middle, and with an obsolete ele- 

 vation replacing the prehumeral carina; surface coarsely, densely 

 rugose, the rugae transverse on disk, but becoming irregularly 

 placed toward the sides, densely, irregularly punctate between the 

 rugae, and sparsely clothed with inconspicuous hairs. Scutellum 

 transversely carinate, and the surface finely reticulate. 



Elytra about equal in width to the pronotum at base, and dis- 

 tinctly wider at base than just behind the middle; sides nearly 

 parallel for a short distance behind the base, broadly, arcuately 

 constricted in front of middle, feebly, arcuately expanded behind 

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

 rately, broadly rounded, and coarsely serrulate; sides of abdomen 

 broadly exposed above; disk feebly flattened, with a vague costa 

 extending from the humerus to apical third, feebly, longitudinally 

 depressed on each side of the suture, which is strongly elevated 

 posteriorly, and with broad, deep basal depressions; surface finely, 

 densely punctate, smoother on the costae, more imbricate toward 

 the sides, sparsely clothed with short, inconspicuous hairs, and each 

 elytron with an indistinct vitta of sparsely, irregularly placed, yel- 

 lowish white hairs, extending from humerus to behind the middle, 

 and with two denser pubescent spots along the suture, one at apical 

 third, the other midway between it and the apex. 



Abdomen beneath rather densely, coarsely punctate, transversely 

 rugose at sides of the first two segments, sparsely clothed with re- 

 cumbent, whitish hairs, and with a densely pubescent spot at sides 

 of third segment; first segment convex at middle, without a median 

 groove; last segment broadly rounded at apex; vertical portions of 

 the segments densely clothed with long recumbent, yellowish white 

 pubescence, except the second, which is nearly glabrous; pygidium 

 coarsely punctate, strongly carinate, but the carina not projecting. 

 Presternum sparsely, coarsely punctate, and sparsely clothed with 

 rather long, recumbent, whitish hairs; prosternal lobe broad, feebly 

 declivous, and broadly rounded in front; prosternal process broad, 

 the sides parallel to behind the coxal cavities, then obliquely nar- 

 rowed to the apex, which is acute. Tibiae slender, nearly straight, 

 anterior pair strongly flattened, and the anterior and middle pairs 

 with a distinct tooth on inner margin at apex. Posterior tarsi dis- 

 tinctly shorter than the tibiae, and the first joint about as long as 

 the following three joints united. Tarsal claws dissimilar, anterior 

 and middle ones cleft near the tip, and the teeth nearly equal in 

 length, the posterior ones cleft near the middle, the inner tooth 

 broader and shorter than the outer one, and not turned inward. 



Female. — Differs from the male in being slightly less attenuate 

 posteriorly, front of head wider, antennae slightly shorter, tooth 



