44 Mr. F. P. Pascoe on new Neotropical CurcuUonidce. 



Elliptic, somewhat narrow and compressed, covered above 

 with pale greyish scales alternating above with ochraceous ; 

 head and rostrum black, with scattered very minute scales, 

 apex of the latter with a broad deep excavation between the 

 insertions of the antennae j scrobe expanding in front of the 

 eye, the upper boundary slightly curved; antennaj black, 

 second joint of the funicle longer than the first, the rest gradu- 

 ally shorter, club with a silvery pubescence ; prothorax rather 

 broader than long, sides rounded, two curved black caringe 

 on the disk, the interval concave and canaliculate ; scutellum 

 small, triangular ; elytra seriate-punctate, a strongly raised 

 carina on the third interstice, terminating in a prominent 

 nodosity, another carina on the seventh interstice, the apex 

 narrow and compressed, ending in two short diverging points ; 

 body beneath and legs black, furnished with pale scattered 

 setula^. 



Cholus luctuosus. 



C. ovatus, aterrimus, squamulis subereftis coucoloribus tectus, 

 fasciis pallide flavis ornatus; corpore infra dense albido-squa- 

 moso. Long. 6 lin. 



Hah. Sarayacu. 



Ovate, intensely black, with small semierect scales of the 

 same colour, and with bands of pale yellowish overlapping 

 scales on the prothorax and elytra; rostrum rather long, 

 dilated and finely punctured at the apex; antennse pitchy, 

 the two basal joints of the funicle equal in length, club 

 elliptic ; prothorax transverse, contracted anteriorly, the 

 apical margin and large spot at the sides pale yellowish ; 

 scutellum oblong ; elytra scarcely broader than the prothorax 

 at the base, the shoulders nearly obsolete, the apex broadly 

 rounded, entire, a pale yellow basal band not extending be- 

 yond the shoulders, another behind the middle, but inter- 

 rupted at the suture, and a large spot on each side between 

 the two bands pale yellowish ; body beneath covered with 

 minute whitish scales ; legs with longer hair-like setulas ; an- 

 terior coxse approximate. 



This species is not unlike Amerhinus Bohemannij Mann., 

 in coloration ; but Chohis differs generically in its longer legs. 

 Polyderces^ Schonh., is another genus with the feeblest of 

 characters, and only adopted by Lacordaire with hesitation as 

 distinct from his ArcJiarias, which he separates from Chohis 

 by the absence of the serrated apex of the elytra and the 

 truncated (not angulated) intermediate segments of the abdo- 

 men ; but if united with Polyderces^ it would lead to such an 

 alteration of nomenclature that I have thought it better to 



