NORTH AMERICAN BUPRESTID BEETLES 319 



carinae extending from posterior angles to basal third; surface 

 coarsely, transversely rugose, obsoletely granulose, and sparsely, finely 

 punctate between the rugae. Scutellum with or without a transverse 

 carina, and the surface finely, densely reticulate. 



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

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

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

 arcuately expanded behind middle, then obliquely narrowed to the 

 tips, which are separately, rather broadly rounded, and finely serru- 

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

 tened, usually with a broad, obsolete, longitudinal depression along 

 the sutural margins, which are elevated posteriorly, and with broad, 

 very shallow basal depressions; surface coarse!}- imbricate-punctate, 

 and sparsely clothed with short, indistinct, whitish hairs. 



Abdomen beneath rather finely, sparsely punctate, feebly, trans- 

 versely, irregularly striolate, and sparsely, uniformly clothed with 

 short, recumbent, whitish hairs; first and second segments feebl} 7 , 

 broadly, longitudinally, concave, the concavity sparsely clothed with 

 long, semierect, whitish hairs ; vertical portions of segments not con- 

 spicuously pubescent; pygidium not carinate. Prosternum sparsely 

 punctate, coarsely rugose, and sparsely clothed with long, erect, 

 whitish hairs; prosternal lobe broad, slightly declivous, and broadly 

 truncate, with a feeble emargination in front; prosternal process 

 broad, the sides nearly parallel to behind the coxal cavities, then 

 obliquely narrowed to the apex, which is acutely rounded. Posterior 

 coxae with the posterior margin nearly transversely truncate or 

 feebly sinute, and the anterior angle rectangular, and not prolonged. 

 Tibiae slender, the anterior and middle pairs slightly arcuate, and 

 armed with a short tooth on inner margin at apex. Posterior tarsi 

 shorter than tibiae, and the first joint as long as the following two 

 joints united. Tarsal claws similar on all feet, cleft near the middle, 

 the outer tooth long and acute, the inner tooth broad, about one-half 

 as long as outer one, and not turned inward. 



Length, 4.25 mm.; width, 1 mm. 



Female. — Differs from the male in having the front of head more 

 cupreous, not so coarsely granulose, or densely pubescent anteriorly ; 

 prosternum without long, erect hairs; anterior and middle tibiae 

 unarmed at apex, and the first two abdominal segments convex, and 

 not clothed with long pubescence at middle. 



Redescribed from a male and female from Kerrville, Tex., in the 

 United States National Museum collection. Since the type of this 

 species has been lost, I am designating the male from which the 

 above description was made as the neotype. 



Type locality. — Missouri River. 



