Brazilian Baring 215 



evenly arcuate sides and narrowly rounded tip, only about a sixth wider than the 

 prothorax and distinctly less than twice as long, the humeri broadly rounded, 

 barely at all prominent ; grooves about a fourth as wide as the nearly punctureless 

 intervals; abdomen with fine, sparse punctures, coarse but well separated basally; 

 the claws are slender, strongly arcuate and widely separated. Length 4.1 mm.; 

 width 2.4 mm. Brazil (Amazones). A single female, communicated by Des- 

 brochers des Loges. 



To be easily recognized by the glabrous surface, oblong-oval 

 form, large prothorax, almost rounded and closely fitted scutellum, 

 slender beak and numerous other structural characters. 



Sunilius n. gen. 



The strongly flattened beak in the female and broad convex 

 prosternum, very widely separating the coxae, are features which 

 render this genus quite different from any other of the present 

 group. The body is feebly rhombic-oval, shining and glabrous, 

 excepting some fine sparse setiform squamules on the elytra and 

 under surface, the prothorax deeply constricted at apex, very 

 sharply defining the parallel tubulation, and the basal lobe is 

 somewhat rapidly formed and with narrowly truncate apex. The 

 scutellum is small, flat, arcuately subquadrate and slightly free, 

 and the elytra sharply but moderately grooved. The legs are 

 normal in general structure, the femora unarmed, the tibiae straight 

 and broadly fluted, the third tarsal joint oval, incised and moderately 

 dilated and the fourth suberect and as long as the entire basal part 

 and with long thick diverging claws. The type is the following: 



Sunilius platyrhinus n. sp. — Moderately stout, strongly convex, polished and 

 deep black throughout; upper surface glabrous, excepting a single line of minute 

 and slender, subfuscous seta? on each strial interval, confused but sparse near the 

 scutellum, each puncture of the under surface with a very minute hair-like 

 squamule; beak (9) evidently longer than the head and prothorax, the dorsal 

 part beyond the antennae parallel, flat, straight, minutely and sparsely punctate 

 and alutaceous, except along a medial line, that behind the antennae rapidly 

 thickened, cylindric, seriato-punctate, more shining and in profile slightly arcuate; 

 antenna slightly behind basal third, blackish, the first funicular joint as long as 

 the next two, the second elongate, the outer joints not dilated, the club very 

 small, narrowly oval, gradual, with glabrous basal segment and not as long as 

 the preceding three joints; prothorax scarcely a fifth wider than long, the feebly 

 converging sides evenly and moderately arcuate from base to the very abrupt 

 angulation at the deep constriction, the apex not quite half as wide as the base; 

 punctures rather strong and confusedly linear at the extreme sides, finer and 

 very remote elsewhere; elytra a third longer than wide, slightly wider than the 

 prothorax and three-fourths longer, the humeri only feebly tumid, oblique; 

 sides evenly arcuate, the apex rather strongly rounded; grooves deep, smooth; 

 intervals nearly five times as wide as the grooves, each with a series of fine punc- 

 tures. Length 5.0 mm.; width 2.7 mm. Brazil (Santarem). One female 

 specimen. 



From each of the small apical foveae of the prosternum there 



