ART. 31 BUPRESTID BEETLES FROM BOLIVIA FISHER 3 



toward the sides, the intervals smooth, transversely rugose toward 

 the sides, Avhere the depressions are finely and densely gi-anulose. 

 Scutellum triangular, longer than wide, strongly acuminate at apex, 

 with the surface smooth. Elytra distinctly wider than pronotum at 

 base, sides broadly rounded at humeral angles, parallel to apical 

 third (feebly concave at basal third), then arcuately attenuate to 

 the tips, which are conjointly rather acutely rounded, lateral mar- 

 gins coarsely serrate to the middle, the teeth large and rather evenly 

 spaced; humeri not prominent; base strongly angularly lobed; sur- 

 face finely and irregularly punctate, the punctures shallow and 

 more widely separated on the disk, becoming deeper and more con- 

 fluent in the depressions and at the sides, and each puncture with a 

 minute pit-like depression at the middle, the intervals smooth ; each 

 elytron with the sutural margin strongly elevated posteriorly, and 

 with four more or less distinct longitudinal costae, the first parallel 

 to the sutural margin, strongly elevated posteriorly, abruptly ex- 

 panded at basal third and extending to the basal depression, the 

 second more feebly elevated and extending from base to the apical 

 depression, the third very arcuate, extending around the external 

 margin of humerus to near the apex, and broadly interrupted by the 

 apical depression, and the fourth parallel with the lateral margin, 

 extending from behind the humerus to the apex and nearly con- 

 nected to the first costa. Abdomen beneath sparsely, coarsely and 

 irregularly punctate, the punctures open posteriorly, and larger and 

 somewhat confluent toward the sides, where the surface is also 

 sparsely clothed with long recumbent cinereous hairs; intervals 

 smooth; first segment broadly, longitudinally concave at middle; 

 last segment broadly longitudinally concave at middle, with the 

 lateral margins entire, the submarginal ridge only prominent on 

 each side of the apical emargination, and the apex deeply, broadly, 

 arcuately emarginate. Presternum transversely truncate in front; 

 surface transversely narrowly concave behind the anterior margin, 

 rather coarsely, sparsely and irregularly punctate, becoming trans- 

 versel}' rugose toward the sides, and sparsely clothed with long 

 cinereous hairs; prosternal process flat, strongly expanded behind 

 the coxal cavities, with a very large triangular tooth at apex. 

 Femora robust ; anterior pair with a large obtuse tooth on the outer 

 edge, closer to the apex than base, and coarsely and irregularly ser- 

 rate on the exterior margin. Anterior and middle tibiae strongly 

 arcuate, subcylindrical and without any dilatation, the posterior 

 pair straight and subcylindrical. 



Female. — Differs from the male in having the head more cupreous, 

 last abdominal segment not concave at middle, but with two large 

 depressions on each side along base, the submarginal ridge more 

 prominent, strongly serrate, broadly roufided at apex and not in- 



