Brazilian Barin^e 255 



the under surface, but coarse and yellowish on the inferior thoracic flanks and 

 broader, very dense and pale orange on the outer part of the mesosternum, also 

 over the entire mes-epimera and met-episterna; beak ( 9) distinctly arcuate,, a 

 little more so and gradually somewhat thickened basally, two-thirds as long as 

 the elytra, the slender antennae testaceous throughout; prothorax nearly a third 

 wider than long, the sides parallel and broadly, subevenly arcuate, more oblique 

 anteriorly and' rounding in somewhat at base, the apex scarcely at all constricted 

 and feebly sinuate; basal lobe very short, gradual and broadly rounded; punc- 

 tures strong and dense, with fine smooth median line; scutellum large, subquadrate 

 and flat; elytra a third longer than wide, evenly parabolic, more than a fourth 

 wider than the prothorax and twice as long; grooves deep, moderately coarse, 

 the interstitial punctures rather strong and confused but not very dense. Length 

 5.6-6.2 mm.; width 2.6-2.8 mm. Brazil (Rio de Janeiro). Three female 

 specimens. 



At first glance this species would surely seem to be affiliated with 

 Odontocorynus, although the characters of beak and antennae are so 

 different; the discovery of the male would probably give a better 

 clue to its true affinities. 



Cylindrocerus Schon. 



This is a moderately large genus of rhomboidal, in great part 

 glabrous and shining species, with spots beneath and usually one 

 or two abbreviated elytral lines or transverse basal area of dense 

 pale scales above. The beak is rather long, glabrous and subevenly, 

 moderately arcuate, cylindric, rapidly narrower apically and sepa- 

 rated from the head by a generally feeble impressi'on, very abruptly 

 enlarged at the extreme base in the female of antennatus, the 

 mandibles straight and non-decussate, sometimes obtuse at tip as 

 in chapadaniis. Antennas glabrous, not very slender, usually sub- 

 medial ( 9 ), or far beyond the middle (d 71 ), the first funicular joint 

 much longer than the others, the club finely, densely pubescent, 

 with obliterated sutures, very long and cylindric in both sexes in 

 the more typical species, but becoming comparatively small and 

 oval in certain others, as in the antennatus section. The prosternum 

 has two moderate and variable ante-coxal spines, separated by 

 a canal or circular perforation (cf ), or perfectly flat ( 9 ), the coxae 

 well separated. The legs are rather long, the femora feebly clavate, 

 the prothorax tubulate at apex, the scutellum small, flat and 

 glabrous, and the cuneiform elytra are moderately but abruptly 

 grooved. The thoracic tubulation and the head are very noticeably 

 broader in the female than in the male. The species at hand seem 

 to be twelve in number as follows: 



Elytra each with two lines of dense yellowish scales from the base — on the third 

 and fifth intervals; antennal club long and cylindric in both sexes; pro- 

 sternum canaliculate in the male * 2 



Elytra each with one short slender line of dense pale scales — at the base of the 

 third interval; antennal club less elongate and more oval; prosternum with 

 a deep circular perforation in the male; body smaller as a rule 9 



