Brazilian Baring 311 



tumid; sides parallel and straight, rounding in apical third, the apex somewhat 

 obtuse; strial punctures evident, each bearing a squamule similar to those of 

 the moderately and uniserially punctate intervals; abdomen smooth, remotely 

 and feebly punctate. Length 2.6 mm.; width 0.8 mm. Brazil (Para). Des- 

 brochers des Loges. One specimen. 



To be known readily from Torcobius by the short thick beak, 

 briefly tubulate prothorax, flat prosternum and other rather con- 

 spicuous features. 



Sibariopsida n. gen. 



The two species placed in this genus bear a striking resemblance 

 to Sibariops, but the beak is short, compressed, thicker and coarsely, 

 deeply sculptured. The antennae are ultra-median, rather slender, 

 the first funicular joint longer than the next two, the club oval, 

 rather abrupt and with its basal segment much less than half the 

 mass. The prosternum is flat and separates the coxae by fully 

 their own width. The legs are of the usual structure, the eyes very 

 moderate, separated by the full rostral width, the prothorax non- 

 tubulate, with the basal lobe very feeble and broadly arcuate, the 

 scutellum free, glabrous and oblong and the elytra somewhat finely 

 striate. The two species at hand are the following: 



Form oblong-suboval, smooth, feebly alutaceous, deep black and glabrous, the 

 minute remote white squamules of the under surface coarser, closer and 

 distinct on the met-episterna; beak (cf) narrower than deep in section, the 

 compressed sides strongly and closely sculptured, distinctly arcuate, scarcely 

 * over three-fourths as long as the prothorax, the antennae piceous, at apical 

 third; prothorax a fourth wider than long, the parallel sides feebly arcuate, 

 more rapidly rounding and oblique in about apical third; punctures very 

 small, sparse, the smooth median line unevenly broad; elytra barely over 

 one-half longer than wide, slightly wider than the prothorax and distinctly 

 more than twice as long, the sides broadly arcuate, becoming straighter and 

 parallel basally, the apex obtusely rounded, with reentrant sutural angle; 

 humeri slightly tumid; striae finely punctate; intervals fully four times as 

 wide as the striae, each with a single series of minute and remotely separated 

 punctures; male abdomen very finely, sparsely punctate, with a distinct 

 simple impression along the middle basally, the prosternum unarmed. 

 Length 2.85 mm.; width 1.2 mm. Brazil (Entre Rios). One specimen. 



ruginasus n. sp. 



Form narrower, elongate-suboval, very much smaller in size, deep black, with 

 short piceous legs, subglabrous, the small and very slender pale squamules 

 of the elytra in single series, those of the under surface not denser on the 

 met-episterna; beak ( 9 ) slightly compressed, strongly and closely punctured, 

 almost straight, similarly separated from the head by a distinct impression 

 and three-fourths as long as the prothorax; antennae piceous, submedial; 

 prothorax slightly longer than wide, the parallel sides straight, rounding in 

 about apical two-fifths, the truncate apex two-thirds as wide as the base; 

 punctures fine and rather sparse; elytra barely one-half longer than wide, 

 only just visibly wider than the prothorax and two-thirds longer, in outline 

 nearly as in the preceding; striae somewhat fine but deep, feebly punctate; 

 punctures of the single interstitial series very minute and widely separated; 

 abdomen finely, sparsely punctate. Length 1.75 mm.; width 0.6 mm. 

 Brazil (Chapada — forest). November. One specimen docilis n. sp. 



