250 Mr. J. S. Baly's descriptions of 



oblique rotiindato-angnstatis, angulis anticis obtusis; 

 elytris (sub lente) tenuissime punctatis. 



Long. 1 lin. 



Ilab. — Chancliamayo. 



Head trigonate ; vertex and front nitidous, impressed 

 on either side, near the eye, with deep puuctiu-es ; encarptfi 

 not distinctly separated from the front, oblong, con- 

 tiguous ; carina raised, linear ; antennte slender, filiform, 

 nearly equal to the body in length, the 2nd joint nearly 

 equal in thickness as the 1st, scarcely shorter than the 

 3rd, oval; the 4th to the 7th nearly equal, each more than 

 one-fourth longer than the 3rd. Thorax nearly twice as 

 broad as long ; sides straight and parallel behind the 

 middle, thence obliquely rounded and slightly converging 

 towards the apex, the anterior angles obtuse, the hinder 

 ones acute ; hinder margin slightly sinuate on either side 

 the middle, thence obliquely truncate to the lateral angle; 

 disk transversely convex, its surface (when seen under a 

 deep lens) obsoletely rugulose. Scutellum trigonate, its 

 apex acute. Elytra broader than the thorax, ovate, con- 

 vex, faintly excavated below the basilar space, the latter 

 on each elytron obsoletely thickened ; surface smooth and 

 shining, impressed with very minute piceous punctures, 

 only visible under a deep lens. 



OCKOSCELIS CYANOPTERA, Erichs. 



Weigm. Archiv. 1847, I. p. 174. 



Mas. — Femoribus anticis incrassatis; tibiis anticis qua- 

 tuor ad apicem incurvatis ; tarsorum articulo basali dila- 

 tato, semiovato. 



Var. A. Coi-pore fulvo, supra cyaneo vix tincto. 



Both sexes of the above species are in the collection 

 brought over by H. Thamm. In one specimen of the 

 male the thorax is more coarsely punctured and has on 

 either side, near the lateral margin, an ill-defined, slightly- 

 raised tuberosity ; in another, the body is fulvous, slightly 

 tinged above with metallic blue. 



O. purpurata, Erichs., placed by Baron v. Harold as 

 the $ of the present species, differs (judging firom Erich- 

 son's description) in its bifoveolate thorax and in having 

 the intermediate tibias alone incurved ; it is probably 

 the $ of another species. 



