284 Mr. J. S. Baly's descriptions of neio genera 



tures. Elytra scarcely broader than the thorax, very 

 convex, finely but distinctly substriate-punctate. 



Chalcoplacis elephas. 



Breviter oblongo-rotundata, valde convexa, subgibbosa; 

 subtus nitida nigra, pedibus abdomineque rufo-testaceis ; 

 supra metallico-olivacea, subopaca, antennis (basi rufii 

 excepta) nigris; thorace granuloso, ad latera sub fortiter, 

 disco minute punctato; elytris granulosis, evidenter sub- 

 remote punctatis, punctis prope suturam subseriatim 

 dispositis. 



Long. 4 lin. 



Hah. — Brazil. 



Head short, granulose, rather sparingly punctured, 

 ^^pper face longitudinally depressed; clypeus semiovate, 

 more closely punctured than the front, its apical margin 

 obsolete, its anterior border slightly sinuate ; jaws and 

 antennas black, the five lower joints of the latter, together 

 with the labrum, rufo-testaceous. Thorax twice as broad 

 as long ; sides straight and slightly converging fi^-om the 

 base to beyond the middle, thence obliquely rounded and 

 converging to the apex ; basal margin oblique and slightly 

 bisinuate on either side, the medial lobe slightly ]3roduced, 

 obtusely rounded ; upper surface granulose, impressed on 

 either side with round punctures, the disk finely punctured. 

 Scutellum semiovate, granulose, impressed in the centre 

 with a small fovea. Elytra rather broader than the thorax, 

 sides parallel from the shoulder to below the middle, 

 thence regularly rounded to the apex; above convex, sub- 

 gibbose before the middle, granulose, sparingly and finely, 

 but distinctly punctured, the punctiu'es near the suture 

 arranged in irregular longitudinal stride. 



Chalcojjlacis hirticollis. 



Rotundata, valde convexa, obsolete gibbosa, nitida, 

 subtus nigra, pedibus abdominisque apice rufo-fiilvis ; 

 supra metallico-coerulea, antennis fulvis; capite subopaco, 

 viridi tincto ; thorace minute punctato, pilis adpressis 

 fulvis vestito, lateribus subopacis, metallico-viridibus ; ely- 

 tris sat fortiter, confuse, ad apicem subseriatim punctatis. 



Long. 2^ lin. 



Hah. — Amazons. 



Head deeply buried in the thorax, plane, sparingly 



