1903.] SOUTH- AMERICAN COLEOPTERA. 43 



portion of the elyti'a ; the suture likewise greenish black ; the 

 epipleurfe blackish ; the mesosternal process long and stout. 



Hah. Colombia. (A single specimen.) 



At once to be separated from other nearly similarly marked 

 species by the colour of the antennae and other details. 



DORYPHORA STERNALIS, Sp. nOV. 



Greenish black ; thorax narrow, subquadrate, extremely closely 

 and distinctly punctured ; elytra geminate punctate-striate, 

 liavous, with the suture and three narrow elongate stripes on 

 each greenish ; mesosternal process extremely long. 



Length 11 miUim. 



Head rather closely punctured, labrum fulvous, stained with 

 black ; antennte with the terminal joints twice as long as broad, 

 black ; thorax twice as broad as long, the lateral margins perfectly 

 straight from the middle downwards, almost slightly concave, the 

 anterior angles pointed ; the disc broadly flattened at the sides, 

 extremely closely punctured, less crowded at the middle, the 

 interstices slightly wrinkled ; elytra distinctly wider at the base 

 than the thorax, strongly geminate punctate -striate near the 

 suture, closely and irregularly punctured at the sides, flavous, the 

 suture and three posteriorly connected stripes, which are wider 

 than the spaces separating them, metallic greenish, the outer 

 interstice near the lateral margins of double the width of the 

 others ; the mesosternal process extremely long, extending to the 

 head. 



Hah. Ecuador. (A single specimen.) 



This species has the longest mesosternum of any Dorypliora I 

 am acquainted with ; it is very pointed and slightly curved. 



DORYPHORA NIGROVIOLACEA, Sp. noV. 



Metallic greenish black below, above blackish purplish, sub- 

 opaque ; thorax obscure greenish, nearly impunctate ; elytra 

 extremely finely punctured, with some obsolete more regular rows 

 of punctures here and there. 



Length 11 millim. 



Head impunctate ; antennse extending beyond the base of the 

 elytra, black, the basal two joints fulvous below, terminal joints 

 widened, longer than broad ; thorax rather m.ore than twice as 

 broad as long, the anterior angles pointed, the surface entirely 

 impunctate, of silky appearance ; elytra very finely and sparingly 

 punctured, with some punctures placed in distant rows ; meso- 

 sternal pi'ocess moderately long. 



Hah, Venezuela? (A single specimen.) 



This is a very sombi'e-coloured species, of purplish black, with 

 very finely punctured elytra, of which the rows can only be seen 

 if examined carefully ; I know of no other similarly sculptured 

 species. The greatest height of the elytra is at the base if the 

 insect is examined sideways. 



