Brazilian Baring 47 



converging sides evenly arcuate from base to tubulation; basal lobe short, 

 broadly and deeply sinuate, with confused punctures only along the sinus; 

 scutellum large, nearly smooth, convex, parabolic in form, with arcuate base; 

 elytra cuneiform, slightly elongate, with narrowly rounded apex and feebly 

 arcuate sides, a fourth wider than the prothorax, the humeri prominent and 

 not very broadly rounded; striae extremely fine and feeble, though with the 

 remote punctures very distinct though small, the sutural stria gradually 

 coarse and deeply excavated basally; hind tibial tooth low and obtuse but 

 sharp; abdominal plaque polished, with very sparse and moderate punctures 

 in the broad concavity; flanks of the body beneath impunctate and with 

 vitreous polish. Length 5.7 mm.; width 3.8 mm. Brazil (Tijuca). Novem- 

 ber. A single specimen — apparently male but without trace of outer inferior 

 tooth on the hind femora emarginatus n. sp. 



Form subrhombic but more obtuse behind, polished, black, the inferior flanks 

 and the upper surface, excepting the elytral apex and thoracic tubulation, 

 pale testaceous, the scutellum also testaceous; beak two-thirds as long as 

 the prothorax, thick, very feebly arcuate, compressed, minutely, sparsely 

 punctate above, strongly, closely and rugulosely so at the sides, the antennal 

 club large, a third longer than the funicle; head strongly, rather closely 

 punctate, the frontal fovea distinct; prothorax but slightly wider than long, 

 the strongly converging sides broadly arcuate, a little more so anteriad; 

 basal lobe with a single line of punctures on the edge of a large deep sinus; 

 scutellum large, as wide as long, broadly and very obtusely parabolic, rounded 

 at base and very strongly elevated and evenly convex, nearly smooth; 

 elytra very obtusely parabolic, barely longer than wide, a fourth wider than 

 the prothorax, with moderate prominent rounded humeri; striae throughout 

 nearly as in the preceding, the punctures rather less widely separated; outer 

 inferior edge of the hind femora not at all dentate, the tibiae arcuate distally; 

 abdominal plaque deeply concave, shining, minutely and remotely punctulate. 

 Length 6.75 mm.; width 4.4 mm. Brazil (Rio de Janeiro). November. 

 One example tumidiscutis n. sp. 



26 — Pronotum thrown up at the summit of the flanks into a pronounced node- 

 like prominence, the dorsal line joining which is transverse and feebly bi- 

 sinuate when viewed postero-obliquely. Rhombiform and highly polished; 

 beak rather thick and feebly arcuate, not three-fourths as long as the pro- 

 thorax, subcylindric, rugulosely punctate, minutely and loosely so distally; 

 antennal club shorter than the funicle; prothorax but little wider than long, 

 the strongly converging sides subevenly arcuate; basal lobe triangular, with a 

 few punctures, the apex narrowly sinuate and punctate; lateral impressions 

 deep; scutellum flat, quadrate, slightly transverse, finely, sparsely punctate; 

 elytra rapidly parabolic, barely longer than wide, a fourth wider than the 

 prothorax; strise obsolete, the sutural distinct basally; the rows of punctures 

 are, however, well marked though fine; hind tibial tooth very small, abrupt 

 and aciculate; legs very strongly punctate, the femora closely, the tibiae 

 densely and rugosely so. Length 4.6 mm.; width 3.25 mm. Brazil (Cha- 

 pada — forest). November. A single female specimen. . . . bicuspidatus n. sp. 



Pronotum subcorneal, very evenly convex 27 



27 — Elytral striae obsolete, excepting the sutural, the surface throughout very 

 smooth and highly polished 28 



Elytral striae distinct, at least internally; surface always very polished and 

 smooth; basal thoracic lobe always distinctly sinuate 30 



28 — Scutellum flat, quadrate, perfectly smooth, not distinctly punctate. Body 

 rather briefly rhomboidal; beak moderately thick, distinctly arcuate, nearly 

 three-fourths as long as the prothorax, compressed, closely and rather strongly 

 punctate at the sides, very minutely and sparsely on the upper surface, 



