622 MR. MARTIN JACOBY ON NEW [N6v. 6, 



(E. jamaicensis is readily distinguished by its very transversely 

 shaped thorax and the entirely impunctate and violaceous elytra. 

 It is the only species known to me from Jamaica. 



(Edionyciiis princeps (Clk. Catal.). (Plate XXXVIII. fig. 4.) 



Widened posteriorly, black ; thorax impunctate, black, the sides 

 fiavous ; elytra metallic blue, rugose and finely punctured, the apex 

 fiavous. 



Length 3 lines. 



Head with a few fine punctures, blackish, the eyes rather closely 

 approached, frontal elevations oblique, clypeus fiavous ; antenna 

 slender, extending beyond the middle of the elytra, black, the fourth 

 joint slightly longer than the third, all the joints rather elongate and 

 pubescent ; thorax strongly narrowed in front, the sides moderately 

 rounded, the anterior angles thickened but scarcely produced 

 outwards, the disc impunctate, black, the lateral margins fiavous, 

 posterior margin perfectly straight 1 ; scutellum black ; elytra rugose 

 aud finely punctured, metallic blue, a triangular spot at the apex 

 fiavous, the outer edge of the epipleurae fiavous, the iuner portion 

 black ; underside and legs black. 



Hab. Brazil or Bogota. 



Clark gives Brazil as the habitat of this species ; a specimen in 

 my collection has Bogota as the locality attached to it, but I am 

 unable to say whence I obtained it. The species may be recognized 

 by the rugose elytra and the colour of the thorax. 



(Ediontchis peruviana, n. sp. 



Fiavous, the intermediate joints of the antennae black ; head and 

 thorax impunctate ; elytra extremely finely punctured, bluish black, 

 the apex fiavous. 



Length 3 lines. 



Head flavous, impunctate, rather flattened, the frontal elevations 

 feeble ; the antennae not extending to the middle of the elytra, the 

 lower four joints and the apical one flavous, the others black, third 

 and fourth joints equal ; thorax much narrowed at the middle, the 

 sides strongly widened, their margins nearly straight, the anterior 

 angles acutely produced but not dentiform, the surface impunctate, 

 flavous ; scutellum black ; elytra widened at the middle, the disc 

 extremely finely and rather closely punctured, bluish black, the 

 extreme apex in shape of a narrow transverse band, flavous ; elytral 

 epipleurae, the underside, and legs flavous. 



Hab. Peru. 



Allied in coloration to (E. Jidgei, Jac, but the antennae are of 

 different colour, the thorax differently shaped, and the elytra of a 

 blackish blue. 



(Ediontch'Ts beskii (Clk. Catal.). 



Black, the sides of the head and the thorax flavous; elytra black, 

 finely punctured, the extreme lateral margin and a spot at the apex 

 flavous. 



