288 Mr. J. S. Baly's descriptions of new c/enera 



rugose. Elytra broader than tlie tliorax, slightly attenu- 

 ated at the apex, very convex, slightly excavated trans- 

 versely behind the humeral callus, the latter thickened ; 

 coarsely punctured, the piaictures arranged in longitudinal 

 rows at the apex ; interspaces closely covered Avith large, 

 somewhat compressed, acute tubercles, which here and 

 there on the inner disk and at the apex coalesce, and 

 form longitudinal costfe. 



Chalcophyma cupreata. 



Subrotundata, valde convexa, nitida, subtus nigra, rae- 

 tasterno pe'dibusque nigro-cyaneis, tarsis fulvis, anticis 

 piceo tinctis; supra la^te cuprea, antennis piceis, basi 

 fuhds ; antennis nigris, his basi labroque fulvis ; capite 

 impresso-strigoso, sat fortiter punctato, clypeo viridi-reneo ; 

 thorace lateribus viridi-metallicis, obsolete bidentatis, jiro- 

 funde punctato, punctis ad latera sat crebre dispositis, 

 disco sparsis, liic illic irregulariter congregatis ; elytris 

 valde convexis, pone basin leviter gibbosis, fortiter, sub- 

 seriatim punctatis, interstitiis duobus intra latus subcos- 

 tatis, limbo laterali extreme limboque inflexo metallico- 

 viridibus. 



Long. 1| lin. 



Hab. — Amazons, Santarem. 



Head short, rather deeply punctured, face impressed 

 between the eyes Avith a longitudinal groove, whole sur- 

 face closely covered Avith impressed striga3, those on the 

 upper face obliquely con\^erging to the medial groove; 

 clypeus rather broader than long, trigonate, its anterior 

 border obsoletely sinuate ; labrum and palpi pale fulvous, 

 the jaAvs black; antennge slender, more than equal to the 

 body in length, filiform, the three lower joints fuh^ous, 

 the rest piceous. Thorax nearly as broad as the elytra; 

 sides rounded and diverging from the base to the middle, 

 thence obliquely converging to the apex, obsoletely biden- 

 tate, the anterior angles acute; disk transA'ersely couA^ex, 

 very deeply and coarsely foveolate-punctate, the fovea3 

 rather crowded on the sides, more scattered and collected 

 in irregular patches on the disk, the interspaces smooth, 

 very faintly strigose near the anterior angles; the general 

 surface bright cupreous, the lateral margins edged Avith 

 bright metallic green. Elytra very convex, subgibbose 

 beloAV the base, very strongly punctured, the punctures 

 arranged in ill-defined longitudinal strins, placed in re- 



