1894.] COLEOPTEBA OF THE GcMKUS (EDKXNTCHIS. 621 



not be safe to say ; this specimen agrees otherwise with those from 

 the Amazons, but has a black underside and legs, beside the other 

 difference pointed out. 



(Edicwstchis semidivisa, n. sp. 



Flavous, the base of the head black, antennae and legs dark 

 fulvous, thorax impunctate ; elytra closely and finely punctured, a 

 subquadrate patch at the base and a more elongate one, more or 

 less indented at the posterior portion, dark violaceous. 



Length 2|-3 lines. 



Head with a few punctures near the eyes, the vertex black, the 

 margin in front of the eyes and the clypeus flavous, labrum black ; 

 antennae extending nearly to the middle of the elytra, dark fulvous, 

 the third and fourth joints equal ; thorax three times broader 

 than long, flavous, the sides rounded, the anterior angles slightly 

 produced outwards, the surface rather convex, flavous, shining ; 

 scutellum black ; elytra very closely and finely punctured, flavous, 

 a large subquadrate patch at the base not extending to either 

 margin and indented at its anterior margin at the shoulders, 

 violaceous black, this patch is followed immediately below the 

 middle by a similar but a more elongate patch, which is sometimes 

 strongly constricted at the middle, or if entire encloses a small spot 

 of the ground-colour. 



Hob. Peru. 



From other nearly similarly coloured species the present one 

 may be distinguished by the shape of the elytral markings, the an- 

 terior one of which shows a short encroachment of the ground-colour 

 near the shoulders, and the posterior mark a semi-division at the 

 middle in one specimen or an inclination to divide in the other. I 

 believe that the shape of these markings and their dark violaceous 

 colour constitute a specific distinction ; none of the dark patches 

 quite extend to either margin, but are divided at the middle by a 

 very narrow band of the ground-colour. 



The species seems allied to (E. biloba, Illig. 



QEuionychis jamaicensis, n. sp. 



Flavous; an tennae robust, thorax strongly transverse, impunctate; 

 elytra entirelv impunctate, metallic violaceous blue. 



Length 4 lines. 



Head impunctate, flavous, shining, depressed between the eyes, 

 the frontal elevations obsolete ; palpi strongly thickened ; antennae 

 robust, flavous, the third and fourth joints nearly equal ; terminal 

 joints slightly darker ; thorax nearly four times broader than long, 

 the sides strongly rounded, the anterior angles strongly thickened, 

 but not produced, the sides with a comparatively narrow flattened 

 margin, the surface shining, impunctate; elytra convex, with a short 

 obsolete depression below the base, strongly convex, entirely impunc- 

 tate, of a bright metallic violaceous colour; underside and legs 

 flavous. 



Hob. Jamaica. 



