NORTH AMERICAN BUPRESTID BEETLES 233 



scarcely extending to middle of pronotum, serrate from the fifth 

 joint, and the outer joints wider than long; eyes rather large, broadly 

 elongate, and equally rounded above and beneath. 



Pronotum about one-fifth wider than long, about equal in width at 

 base and apex, and widest near apical third; sides feebly obliquely 

 expanded from posterior angles to apical third, then arcuately nar- 

 rowed to the apical angles ; when viewed from the side the marginal 

 and submarginal carinae are strongly sinuate, rather broadly sepa- 

 rated anteriorly, and connected to each other behind the middle; 

 anterior margin strongly sinuate, and the median lobe strongly, 

 broadly rounded ; base feebly, transversely sinuate to middle of each 

 elytron, and with a very broadly rounded median lobe; disk moder- 

 ately convex, median line rather deeply depressed throughout, the 

 depression broader and deeper posteriorly, with a shallow depression 

 on each side along lateral margin, and with a vague, obtuse elevation 

 in place of the prehumeral carina; surface coarsely, deeply, but not 

 very closely rugose, the rugae wavy and transverse at the middle, but 

 becoming longitudinal toward the sides, sparsely, finely punctate be- 

 tween the rugae, and clothed with a few inconspicuous hairs. Scu- 

 tellum deeply depressed, but not transversely carinate, and the surface 

 densely reticulate. 



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

 width at base and behind middle; sides nearly parallel for a short 

 distance behind base, broadly, vaguely constricted in front of middle, 

 feebly, arcuately expanded behind middle, then obliquely narrowed to 

 the tips, which are separately, rather broadly rounded, and finely 

 serrulate ; sides of abdomen feebly exposed above ; disk slightly flat- 

 tened along suture, and forming a vague longitudinal costa on each 

 side, the sutural margins rather strongly elevated posteriorly, and 

 with broad, shallow basal depressions; surface densely, coarsely im- 

 bricate-punctate, and sparsely, uniformly clothed with short, recum- 

 bent, whitish hairs. 



Abdomen beneath finely, obsoletely granulose, rather coarsely, mod- 

 erately punctate, and moderately clothed with short, recumbent, white 

 hairs ; first segment convex, and without a depression at middle ; last 

 ventral segment with a small emargination at apex ; vertical portions 

 of segments not conspicuously pubescent; pygidium without a pro- 

 jecting carina. Posternum densely, coarsely punctate, coarsely ru- 

 gose, and sparsely clothed with rather long, semierect, white hairs; 

 posternal lobe broad, moderately declivous, and broadly truncate or 

 vaguely, broadly emarginate in front; prosternal process broad, the 

 sides parallel to behind the coxal cavities, then obliquely narrowed 

 to the apex, which is acute. Tibiae slender, and without a tooth on 

 inner margin at apex. Posterior tarsi distinctly shorter than tibiae, 

 and the first joint about as long as the following three joints united. 



