Brazilian Barin/E 79 



to the scarcely constricted apex, which is almost half as wide as the base; 

 entire surface, as well as the inferior flanks, very smooth and impunctate; 

 basal lobe moderate, smooth, rather narrowly rounded; scutellum minute, 

 flat, not very smooth, slightly longer than wide; elytra evidently elongate, 

 parabolic, only slightly wider than the prothorax, the humeri not prominent; 

 sutural stria rather fine, but, basally and outwardly, becomes distinctly 

 carinated, the ninth distinct, catenulate, the tenth very fine and nearly 

 smooth though evident; under surface of the hind body strongly, loosely 

 punctate; tibiae very slender; abdomen rather tumid at base. Length 

 2.0 mm.; width 1.2 mm. Brazil (Santarem). One specimen. 



suturalis n. sp. 



Sutural stria simple, not prolonged outwardly at base 2 



2 — Discal striae of the elytra obsolete, the surface very smooth; body minute 

 in size. Piceous throughout, the entire body above and below very smooth, 

 polished and wholly impunctate; beak rather thick, arcuate, slightly com- 

 pressed, as long as the prothorax, rather strongly punctate at the sides, 

 minutely and sparsely above, with a moderate transverse impression at base; 

 prothorax slightly shorter than wide, the converging sides straight, arcuate 

 in apical two-fifths, the unconstricted apex not half as wide as the base; 

 basal lobe very small, short and evenly rounded; scutellum very minute, 

 stibquadrate. smooth, its broadly sinuate apex a little wider than the base; 

 elytra nearly a third longer than wide, a fifth wider than the prothorax, 

 narrowly ogival, with but feebly arcuate converging sides and narrowly 

 rounded apex; sides becoming parallel and broadly arcuate in about basal 

 third; stria? obsolete, the sutural very fine, 9 and 10 obsolete, except abruptly 

 near the apex, where they become coarse, equal and strongly catenulate; 

 legs rather thick, coarsely, roughly punctate, each puncture with a coarse 

 subdecumbent seta, the seta? numerous at the tibial apex. Length 1.4 

 mm.; width 0.75 mm. Brazil (Santarem). One example. . . minutus n. sp. 

 Discal stria? strong and relatively coarse; body but little below the average size 

 in Hiotopsis; basal thoracic lobe with a strong isolated puncture at each 



angle 3 



3 — Body oval, polished and deep black throughout; beak rather thick, strongly 

 arcuate, subcylindric, a little shorter than the prothorax, coarsely, longi- 

 tudinally sculptured, more finely but not very sparsely above, the transverse 

 basal impression deep; prothorax almost a fourth wider than long, the 

 converging sides straight, rather rapidly arcuate beyond the middle, the 

 apex feebly constricted, half as wide as the base; surface with only the 

 usual remote and microscopic punctulation, but, at the extreme sides, with 

 rather strong sparse punctures, continuing down the inferior flanks ; basal lobe 

 moderate, truncate medially at tip; scutellum minute, quadrate, smooth, 

 somewhat longer than wide; elytra oval, only a little longer than wide, 

 barely a sixth wider than the prothorax; apex somewhat narrowly rounded; 

 humeri not at all prominent; inner stria? deep and groove-like, the outer 

 extremely fine and obsolete, but with the minute punctules evident, 9 and 

 10 somewhat coarse, catenulate; legs with rather small but strong punctures, 

 sparsely and inconspicuously setulose. Length 1.7 mm.; width 1.0 mm. 



Brazil (Chapada — forest). November. One specimen stygialis n. sp. 



Body more rhomboidal, the more prominent subapical elevations of the elytra 

 giving a subtruncate discal appearance when viewed antero-posteraid, this 

 rather more evident than in the preceding; color deep black, the elytra 

 bright rufous, shaded slightly at base and black at apex; beak very thick 

 and compressed, strongly arcuate above, nearly straight beneath, rather 

 longer than the prothorax, the basal transverse impression broad and shallow; 

 sides strongly punctured and furrowed, the upper surface more finely but 



