NORTH AMERICAN" BUPRESTID BEETLES 45 



Pronotum nearly one-half wider than long, wider at base than 

 at apex, and widest at middle ; sides feebly sinuate, and moderately, 

 arcuately rounded from apical angles to base ; when viewed from the 

 side the marginal carina is feebly sinuate, the submarginal carina 

 nearly straight to basal third where it is strongly, arcuately ex- 

 panded, and the two carinae separated for their entire length; an- 

 terior margin rather strongly sinuate, and the median lobe rather 

 strongly, broadly rounded ; base feebly, broadly emarginate at middle 

 of each elytron, with the median lobe strongly, broadly rounded, and 

 truncate in front of scutellum ; disk moderately convex, with a broad, 

 deep, concave median depression extending from anterior margin 

 to scutellum, a broad, deep, kidney-shaped depression on each side 

 along lateral margin, and without prehumeral carinae; surface 

 coarsely, densely, irregularly rugose, coarsely, sparsely punctate be- 

 tween the rugae, and the surface in lateral depressions concealed by 

 the short, dense, golden yellow pubescence and efflorescence. Scutel- 

 lum feebly, transversely carinate,. and the surface finely, densely 

 granulose. 



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

 base and behind middle; sides feebly expanded for a short distance 

 behind base, broadly, arcuately constricted in front of middle, rather 

 strongly, broadly expanded behind the middle, then obliquely nar- 

 rowed to the tips, which are separately, broadly rounded, and 

 strongly serrulate; sides of abdomen narrowly exposed above; disk 

 broadly, longitudinally depressed along sutural margins, which 

 are rather strongly elevated behind middle, and with broad, deep, 

 basal depressions; surface densely, coarsely, acutely imbricate- 

 punctate. 



Abdomen beneath obsoletely granulose, finely, densely punctate, 

 the punctures connected transversely at sides of segments, denser and 

 acutely imbricate on basal segment, and sparsely clothed with short, 

 inconspicuous hairs; first segment convex at middle; last segment 

 broadly rounded or subtruncate at apex; vertical portions of the 

 segments not conspicuously pubescent; pygidium densely, coarsely 

 punctate, and distinctly, longitudinally carinate, but the carina not 

 projecting. Prosternum sparsely, coarsely punctate, coarsely, trans- 

 versely rugose, and sparsely clothed with short, recumbent, whitish 

 hairs : prosternal lobe broad, rather strongly declivous, and feebly, 

 arcuately emarginate in front ; prosternal process broad, the sides 

 parallel to behind the coxal cavities, then broadly rounded to the 

 apex. Sides of sterna densely clothed with moderately long, recum- 

 bent, reddish yellow pubescence. Tibiae more or less flattened, and 

 unarmed at apex. Posterior tarsi distinctly shorter than tibiae, and 

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



