Brazilian Barinme 207 



apex much ( cf) or a little ( 9 ) less than half as wide as the base, the lobe gradually 

 formed and evenly rounded; punctures small and remote throughout, feebly 

 squamulose antero-laterad; elytra slightly more (?) or much more (d*) than a 

 fourth longer than wide, evenly parabolic, more (d 71 ) or less ( 9) than a fourth 

 wider than the prothorax and distinctly more than twice as long, the humeri 

 rather prominent, rounded; grooves deep, nearly smooth, about a fourth as 

 wide as the smooth intervals. Length 4.4-5.3 mm.; width 2.5-2.85 mm. Brazil 

 (Rio de Janeiro). Eight specimens. [Centrinas ruficornis Boh.] 



The abdomen in the male is flattened but strongly punctured 

 basajly, with a finely impressed or striiform median line, the pro- 

 sternal spines erect and but little longer than the thickness of the 

 anterior femora in the type. » 



Valliopsis n. gen. 



The beak in the typical forms of this genus is very thick, com- 

 pressed basally, with the flattened sides tricostulate and with 

 densely punctulate and finely, sparsely squamulose interspaces, 

 gradually feebly tapering (o 71 ) or more rapidly so, cylindric and 

 less sculptured beyond the antennae (9), the antennae at three- 

 fifths (cf) or four-sevenths (9), slender, with small and narrowly 

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

 of which are notably elongate. The mandibles are much as in the 

 preceding genus, bi- or tridentate and straight within, prominent 

 when closed and not decussate. The presternum is densely squa- 

 mose throughout, not impressed and the coxae narrowly separated ; 

 ante-coxal spines wholly wanting in the male. The prothorax is 

 not or scarcely tubulate at apex, the basal lobe gradual' and broadly 

 rounded, and the scutellum is wider than long, obtrapezoidal, flat, 

 glabrous and broadly sinuate at apex, with acute angles. The 

 elytra have slightly prominent rounded humeri, deep grooves and 

 moderately prominent subapical discal tumidity. The species are 

 rather numerous and pertain to two subgeneric groups as follows: 



Under surface densely and conspicuously squamose throughout; posterior femora 

 densely fringed beneath in the male, except in lateralis, the abdominal im- 

 pression in that sex deep, more or less sharply limited and with longer, finer, 

 very sparse and suberect squamules. Subgenus Valliopsis 2 



Under surface with fine and sparse, even squamules, not at all concealing the 

 integument but denser on the abdomen posteriorly; femora without trace 

 of inferior fringe in the male, the abdominal impression feebler and less 

 definite, clothed with very fine and slender, sparse hair-like squamules; 

 prothorax more evidently tubulate at apex. Subgenus Valliopsida (nov.).8 



2— Beak very thick, as described above, notably thinner apically in the female; 

 prothorax much narrower than the elytra 3 



Beak notably less thick and differing but little in the sexes; prothorax but little 

 narrower than the elytra; body smaller in size and narrower as a rule 6 



3 — Pronotum abruptly, densely squamose at the sides throughout the length.. .4 



Pronotum not squamose at the sides, except at apex 5 



