348 



ME. J. BALT ON FEW SPECIES 



excavation, only visible iu certain lights. Scutellum black. 

 Elytra distinctly punctate-striate, interspaces smooth, impressed 

 here and there with very minute punctures. Prosternum oblong- 

 quadrate, its hinder apex sinuate in the middle ; surface plane, 

 narrowly concave on the anterior margin. 



Lamprosoma cupricolle, n. sp. Subrotundatum, valde convexura, 

 nitidiim, subtus cum antennis (harura basi fulva excepta) nigrum ; 

 supra rufo-aureum ; thorace cupreo, interrupte rufo-aureo limbato ; 

 elytris evidenter punctato-striatis. Long. 25lin., lat. 2 lin. 

 Hob. Ega, Upper Amazons. Collected by Mr. Bates. 

 Head finely but distantly punctured ; front impressed with a 

 perpendicular grooved line ; clypeus (viewed from the front) de- 

 flexed, concave, its anterior margin also concave ; its surface gra- 

 nulose, aeneous ; labrum black, concave-emarginate ; under surface 

 of the basal and the whole of the second and third joints of the 

 antennae obscure fulvous, the remaining joints black. Thorax 

 more than twice as broad as long at the base ; sides obliquely 

 convergiDg and slightly rounded from the base towards the apex, 

 more quickly rounded near the latter ; basal margin very oblique 

 on either side, the median lobe slightly reflexed, its apex rounded ; 

 upper surface impressed on either side just before the median 

 lobe, sparingly and finely punctured ; the entire lateral mar- 

 gin, the hinder margin for nearly its whole length, together with 

 the middle of the apical border, narrowly edged with rufo-seneous. 

 Scutellum metallic green. Elytra distinctly punctate-striate, 

 interspaces smooth, impunctate. Prosternum oblong- quadrate, 

 its surface plane. 



Lamprosoma Amazon um, n. sp. Subrotundatum S > ovato-rotun- 

 datum, postice attenuatum $ , valde convexum, igneum nitidum, subtus 

 cum antennis nigrum ; thorace minus remote evidenter punctate ; 

 elytris evidenter punctato-striatis ; clypeo paullo elevate, declivi, 

 antice concavo-emarginato ; prosterno late oblongo-quadrato, piano, 

 rugoso-punctato. Long. 3 lin., lat. 2|-2| lin. 



Hob. Ega, Upper Amazons. Collected by Mr. Bates. 



Head finely punctured, its surface somewhat irregular, faintly 

 rugose on the lower face ; front impressed with a fine longitudi- 

 nal groove ; clypeus slightly thickened, slightly deflexed, its an- 

 terior border concave-emarginate ; labrum black, its front margin 

 obtusely angulate, its anterior surface inflexed, concave. Thorax 

 more than twice as broad as long at the base ; sides regularly 

 rounded and converging from base to apex ; basal margin very 



