Brazilian Barin.e 43 



rather acute apex and prominent humeri, differing from the preceding also 

 very distinctly in the character of the striae, these not being extremely fine 

 and simple, but narrowly duplex, feeble, the punctures minute and remote; 

 abdominal plaque concave, densely and moderately punctate; hind femoral 

 outer inferior tooth distinct in the male, the tibial tooth broad and rather 

 obtuse. Length 8.0 mm.; width 5.4 mm. Brazil (Chapada). November. 

 One male example trapezicollis n. sp. 



17 — Form rhombic-ovoidal, the size notably large; upper surface piceous-black, 

 smooth, feebly alutaceous; beak in the female rather cylindric, feebly, 

 evenly arcuate, three-fourths as long as the prothorax, minutely and remotely 

 punctulate, strongly so on the flattened sides basally; antennae slightly be- 

 hind the middle, the rostral grooves beyond short but deep; club distinctly 

 shorter than the funicle; prothorax large, almost as wide as the elytra, fully a 

 fourth wider than long, the strongly converging sides arcuate, less so basally; 

 surface almost evenly convex; basal lobe broad, almost impunctate, the 

 apex sinuato-truncate; scutellum quadrate, smooth, flat, feebly sinuate at 

 apex; elytra slightly elongate, cuneiform, with narrowly rounded tip, feebly 

 arcuate sides and broadly rounded, scarcely at all prominent humeri, only a 

 fifth or sixth wider than the prothorax; striae extremely fine and feeble, 

 having small but evident, very widely separated punctures, the sutural stria 

 barely differing at all from the others, merely somewhat more visible; sub- 

 basal tooth of the hind tibiae rather large, angulate; abdominal plaque 

 strongly, not very densely punctate, smooth at base, more impressed medially 

 toward apex. Length 11.0 mm.; width 6.8 mm. Brazil (Chapada). 

 October. A single female amplicollis n. sp. 



Form much narrower, smaller in size, black, smooth and rather shining, the 

 pronotum piceo-rufous; beak in the male two-thirds as long as the pro- 

 thorax, rather thick, feebly arcuate, compressed and feebly tapering, strongly, 

 closely sculptured laterally, finely and rather less closely on the upper sur- 

 face, which slopes slightly downward beyond the antennae, the latter at two- 

 fifths, the lateral sulci beyond them coarse and deep, the under surface but 

 feebly concave; prothorax as long as wide, the evenly converging sides 

 broadly, distinctly and evenly arcuate to the tubulation; surface very 

 evenly convex, the basal lobe transversely truncate, with a few moderate 

 punctures; scutellum moderate, quadrate, feebly sinuato-truncate at tip; 

 elytra cuneate, distinctly longer than wide, with narrowly rounded tip and 

 broadly, evenly arcuate sides, the humeral prominences very broadly rounded 

 and feebly marked, barely a fourth wider than the prothorax; striation and 

 punctures as in the preceding; outer inferior tooth of the hind femora acutely 

 triangular, the external tibial tooth low, rather distant from the base; 

 abdominal plaque somewhat acutely concave, very densely punctate and 

 conspicuously setulose, smooth at base. Length 8.8 mm.; width 5.4 mm. 



Brazil (Chapada). November. A single male sponsor n. sp. 



Form oblong-rhomboidal, strongly convex, smooth though strongly alutaceous, 

 piceous-black above; beak in the female rather long, cylindric, about as long 

 as the prothorax, evenly arcuate, finely, loosely punctate, more coarsely at 

 the sides basally; antennae at two-fifths, the club very nearly as long as the 

 funicle; prothorax fully a fourth wider than long, of peculiar outline, the 

 sides feebly converging and slightly arcuate to apical third or fourth, there 

 apically rounding to the tubulation; surface very evenly convex; basal lobe 

 broad, feebly arcuate at apex, becoming sinuate medially, feebly impressed 

 but subimpunctate; scutellum rather large, quadrate, somewhat wider than 

 long, with rounded angles; elytra a fourth wider than the prothorax, slightly 

 elongate, cuneiform, with rather obtusely rounded apex, and with the sides 

 straight behind the large, rounded and somewhat prominent humeri; striae 



