Brazilian Baring 59 



Form nearly as in abruptus but smaller and somewhat narrower, deep polished 

 black, the prothorax deep rufo-piceous; beak rather thick, arcuate, not 

 quite as long as the prothorax, strongly, closely sculptured at the sides, 

 separated from the head by a very shallow and undefined impression; pro- 

 thorax less distinctly wider than long, narrower, the sides a little more con- 

 verging and barely arcuate, more gradually arcuate and converging well 

 beyond the middle to the tubulation, which is fully half as wide as the base 

 and relatively wider than in abruptus; basal lobe small, truncate, nearly 

 smooth, the lateral impressions feeble; scutellum very small, quadrate, flat, 

 smaller and not so smooth as in abruptus; elytra a little longer than wide, a 

 fifth wider than the prothorax, ogival, with narrowly rounded apex, the sub- 

 apical prominences giving a subtruncate appearance to the disk when viewed 

 antero-obliquely; humeri slightly prominent but rounded: grooves coarse, 

 abrupt, very deep and smooth, the intervals flat and smooth; under surface 

 nearly as in the preceding, the hind tibiae moderately but sharply dentate 

 externally at base. Length 1.9 mm.; width 1.18 mm. Brazil (Chapada). 

 November. One example histricus n. sp. 



6 — Body distinctly subrhombic, but with the subapical elevation of the elytra 

 producing an arcuato-truncate effect when viewed antero-obliquely, highly 

 polished and black throughout; beak feebly arcuate, moderately thick, 

 distinctly punctate laterally, very minutely and sparsely above, the front 

 with a median fovea but without transverse impression, three-fourths as 

 long as the prothorax, which is but just visibly wider than long, the sides 

 obviously converging from the base, though not strongly, and feebly arcuate, 

 rapidly rounding anteriorly to the tubulation; surface very smooth, with 

 some sparse confused punctures at the lateral edges, the basal lobe small, 

 minutely, sparsely punctulate, narrowly truncate, without trace of lateral 

 impressions; scutellum very small, quadrate, but not as wide as long, canal- 

 iculate; elytra distinctly longer than wide, between a fourth and fifth wider 

 than the prothorax, evenly ogival at the true edge, obtuse at apex, the 

 humeri somewhat prominent, though broadly rounded; grooves not quite so 

 coarse as in subquadratus but similarly very deep and abrupt and with 

 smooth flat intervals; under surface coarsely, rather closely, subevenly 

 punctate, finely and very sparsely on the propleura; legs rather short, 

 coarsely and loosely sculptured, the hind tibiae strongly and acutely dentate 

 externally near the base. Length 2.8 mm.; width 1.8 mm. Brazil (Santa- 

 rem). One specimen subsulcatus n. sp. 



Body larger, much stouter and oval, polished and black, the pronotum with very 

 faint piceous tinge; beak short, thick, feebly arcuate, compressed and feebly 

 tapering, only two-thirds as long as the prothorax, coarsely, densely punc- 

 tured at the sides, finely, closely and substrigosely so above, without trace of 

 fovea or transverse impression at base, the surfaces perfectly continuous; 

 prothorax but slightly wider than long, the sides distinctly converging from 

 the base, very feebly arcuate, rapidly very strongly converging anteriorly 

 to the tubulation, smooth, the coarser sparse punctures on the upper part 

 of the flanks distinct; basal lobe small, nearly smooth, not laterally impressed, 

 feebly truncatulate; scutellum small, quadrate, longitudinally concave; 

 elytra barely visibly longer than wide and not a fifth wider than the pro- 

 thorax, obtusely oval, subapical elevation feeble, the humeri but slightly 

 prominent, large and rounded; grooves rather coarse, very deep and abrupt, 

 somewhat punctulate laterally, the intervals smooth and flat; abdomen with 

 the two basal segments not modified but coarsely, closely and equally punc- 

 tate, the suture deep and distinct; hind femora loosely punctate, rather 

 stout, the tibiae relatively very slender, with the outer tooth near the base 

 extremely minute and tuberculiform. Length 3.35 mm.; width 2.18 mm. 

 Brazil (Rio de Janeiro). November. One specimen obtusus n. sp. 



