196 MR. MARTIN JACOBY ON NEW SPECIES [Mar. 4, 



flavous, labrum and palpi black ; antennae rather slender, black, 

 all the joints, with the exception of the second, nearly equal ; 

 thorax with the sides straight, the anterior angles broadly truncate 

 and rather produced, the surface with the usual obsolete trans- 

 verse sulcus near the base, impunctate, testaceous, the disc with 

 a triangular black band or spot at the middle ; scutellum black ; 

 elytra with the base narrowly black, this colour extending to the 

 shoulders, the apex with another triangular black spot ; below and 

 the legs black, the base of all the femora flavous. 

 Hah. Upper Amazons. 



Nephrica brasiliensis, sp. n. (Plate XX. fig. 6.) 



Pale fulvous, the head, antennae, and the legs black ; thorax 

 yellowish white, impunctate, sc^itellum black ; elytra scarcely 

 perceptibly punctured, black, shining, the lateral margins and a 

 large transverse patch at the middle yellowish white. 



Length 8 mOlim. 



Head black, with a single puncture near the eyes, the latter 

 very large, kidney-shaped ; clypeus flavous, triangularly raised, 

 labrum and palpi black ; antennae rather short and robust, black, 

 the third joint twice as long as the second and nearly equal to 

 the fourth joint, intermediate joints slightly widened ; thorax 

 nearly three times broader than long, slightly narrowed in front, 

 the sides nearly straight, with rather broad, strongly reflexed 

 lateral margins ; anterior angles obtusely thickened, the surface 

 impunctate, very shining, nearly white, wjth a very obsolete 

 sulcus near the base ; elytra convex, widened towards the middle, 

 with narrow lateral margins, nearly impunctate, shining black, 

 this colour interrupted at the middle by a large transverse 

 yellowish patch, which does not quite extend to the suture, but is 

 connected at the sides with the similarly coloured lateral margin ; 

 below pale fulvous, the legs black, the extreme base of the 

 posterior femora fulvous. 



Uab. Rio Janeiro. 



A rather large and convex species, well distinguished by its 

 coloration. 



Nephrica imitans, sp. n. 



Testaceous, the antennae, tibiae, and tarsi black ; thorax im- 

 punctate, obsoletely sulcate near the base ; elytra impunctate, a 

 broad sutural and discoidal band and a very narrow sublateral 

 stripe black. 



Length 7 millim. 



Head impunctate, the frontal tvibercles obsolete, the carina 

 acutely raised, eyes broadly emarginate ; antennae black, the basal 

 two joints testaceous below, the fourth joint longer than the 

 third ; thorax of usual transverse shape, the sides very feebly 

 rounded at the middle, the anterior angles strongly obliquely 

 truncate, the posterior margin emarginate in front of the scu- 



