Brazilian Baring 69 



punctured and slightly tumid first ventral impressed medially, except at 

 the posterior margin. Length 3.3-3.6 mm.; width 2.2-2.5 mm - Brazil 

 (Chapada). March. Two specimens cavifrons n. sp. 



Posterior tibiae broadly rounded externally toward base, having, at an unusually 

 long distance from the latter, a very small acute tooth 9 



9 — Front with a large deep cavity as in the two preceding. Body less stout, 

 subrhomboid; beak rather thick, finely, sparsely punctate, arcuate, not 

 three-fourths as long as the prothorax, received closely in the capacious 

 ante-coxal sulcus; prothorax but little wider than long, the converging sides 

 evenly and moderately arcuate from base to the feeble apical sinuses, the 

 apex scarcely more than a third the basal width; upper line in profile rather 

 strongly, very evenly arcuate from base to apex; basal lobe moderate, 

 subimpunctate, the narrow apex strongly, evenly rounded; scutellum minute, 

 quadrate, with a few small punctures; elytra distinctly longer than wide, 

 scarcely a fifth wider than the prothorax, the subprominent humeri broadly 

 rounded, ogival in outline, with rather narrowly rounded apex; discal striae 

 extremely feeble and rather obtuse but traceable; mes-epimera with sparse 

 and very coarse but shallow punctures; metasternum strongly punctate; 

 femora rather long, parallel, polished, minutely, sparsely punctulate; tibial 

 tooth just behind basal third, erect and acute but very small. Length 

 2.9-3.1 mm.; width 2.0-2.15 mm. Brazil (Santarem). Two specimens. 



parviscutis n. sp. 



Front without trace of large cavity, at most with the usual very small median 

 puncture 10 



10 — Form rather stout, rhomboid-oval; beak (c?) thick, arcuate, slightly tapering, 

 compressed, three-fifths as long as the prothorax, densely punctate, more 

 finely, densely strigilate above; front with a very small puncture; antennae 

 nearly as in the preceding species; prothorax in profile arcuate above, 

 gradually sloping and more nearly straight apically, nearly a fourth wider 

 than long, the converging sides evenly and very moderately arcuate; entire 

 flanks beneath somewhat strongly punctured; basal lobe broad, evenly 

 rounded, well developed and with some submarginal punctures; scutellum 

 moderate, quadrate, feebly impressed and minutely, sparsely punctulate; 

 elytra but little longer than wide, a fifth wider than the prothorax, the con- 

 verging sides very moderately arcuate; apex rather narrowly rounded; 

 humeri somewhat narrowly rounded and rather prominent; discal striae 

 extremely fine and obsolescent, scarcely traceable; mes-epimera with about 

 twelve coarse shallow punctures; hind femora parallel, rather loosely but 

 distinctly punctured; minute tibial tooth as in the preceding but rather more 

 spiniform. Length 3.2 mm.; width 2.3 mm. Brazil (Santarem). One 

 specimen cornix n. sp. 



Form nearly similar but slightly more elongate; beak (cf ) almost similar but not 

 quite so thick, barely three-fifths as long as the prothorax, the upper surface 

 more densely strigilato-punctate and subopaque; antennae nearly similar; 

 prothorax not quite so abbreviated, not a fifth wider than long, otherwise 

 similar, the well developed rounded basal lobe with more numerous but 

 sparser and more scattered small punctures; lateral impressions similarly 

 small and feeble; scutellum a little larger, flat, quadrate, minutely, sparsely 

 punctulate; elytra similar throughout but more distinctly longer than wide, 

 the humeri similar; discal striation still more nearly obsolete; mes-epimeral 

 punctures not quite so large but deeper; hind femora not quite so long, more 

 coarsely, evenly but loosely punctate; tibial denticle minute, acute, slightly 

 oblique; feebly tumid first ventral more loosely punctate and impressed 

 medially. Length 2.75-3.3 mm.; width 1.9-2.4 mm. Brazil (Chapada). 

 November. Found on flowers near the forest. Three specimens. 



gentilis n. sp. 



