Brazilian Baring 45 



moderately narrow rounded apex and somewhat narrowly rounded promi- 

 nent humeri, between a fourth and fifth wider than the prothorax; striae 

 extremely fine and feeble, but with fine and distant though distinct punctures, 

 the sutural stria coarser though shallow; abdominal plaque strongly, rather 

 closely punctate, slightly concave; hind tibial tooth acute. Length 3.8 

 mm.; width 2.5 mm. Brazil (Santarem). A single specimen, apparently 

 female planiscutis n. sp. 



Front without trace of fovea at each side 21 



21 — Elytral striae rather coarse and deep suturally, less coarse and feeble but 

 somewhat closely and strongly punctate thence externally. Body rhombi- 

 form, highly polished, deep black, the pronotum bright rufous, black as 

 usual at apex; beak moderately thick and compressed, shining, feebly arcu- 

 ate, two-thirds as long as the prothorax, narrowed slightly at tip, strongly 

 and closely punctate; antennae submedial, as usual in structure; prothorax 

 but little wider than long, the sides strongly converging and evenly arcuate 

 from base to tubulation; surface evenly convex, with very minute remote 

 punctulation; basal lobe broadly sinuate at apex, with a few distinct punc- 

 tures there and thence along the base, which is feebly impressed near the lobe; 

 scutellum nearly fiat, slightly wider than long, truncate, feebly trapezoidal, 

 with arcuate base; elytra not longer than wide, a fourth wider than the pro- 

 thorax, ogival, with narrowly rounded apex, the humeri rounded but rather 

 prominent; two lateral striae coarse and deeply excavated; abdominal 

 plaque subangularly impressed, finely and very sparsely punctate; mes- 

 epimera coarsely, sparsely punctate; middle and hind tibiae acutely, acicu- 

 larly dentate near the base. Length 4.5 mm.; width 3.4 mm. Brazil 

 (Chapada). October. A single specimen — apparently female. 



insequalis n. sp. 



Elytrel striae extremely fine, often subobsolete, the sutural stria always a little 

 stronger and, in geniculates and adulans, rather coarse; mes-epimera always 

 minutely and remotely punctulate 22 



22 — Body smaller and narrowly subrhombiform, shining, deep black, the pro- 

 notum rufous; beak closely, strongly punctate, more rugosely on the com- 

 pressed sides, feebly arcuate, nearly three-fourths as long as the prothorax, 

 the antennae as usual; prothorax a fifth wider than long, the sides converging 

 and very moderately arcuate, gradually more rounding anteriorly, the apical 

 tubulation nearly three-sevenths as wide as the base, the basal lobe rather 

 narrowly truncate, the distinct confused punctures extending also along the 

 unimpressed base; scutellum quadrate, scarcely as wide as long, sinuato- 

 truncate at apex; elytra evidently longer than wide, nearly a fourth wider 

 than the prothorax, cuneiform, with rounded apex, the oblique sides straight 

 medially, the humeri rounded though notably prominent; striae very fine 

 but evident, finely, remotely punctate; abdominal plaque deeply concave, 

 subangularly so behind, strongly and closely punctate, except at base; middle 

 and hind tibiae acutely dentate externally near base. Length 5.5 mm.; 

 width 3.7 mm. Brazil (Chapada). November. A single male example. 



merus n. sp. 



Body almost similar in form and size but with the beak more finely and closely, 

 and the front between the eyes more finely and sparsely, punctate; the punc- 

 tures of the basal thoracic lobe are not continuous as in merus, but are sharply 

 interrupted at the middle and, at each side of the middle, the punctures form 

 a short longitudinal line, which is not remotely suggested in merus; scutellum 

 differing in being wider, slightly wider than long, more parallel and with 

 truncate and not sinuate apex; punctures of the more nearly obsolete 

 elytral striae much more evident, very remote in the series. Length 5.7 mm.; 

 width 3.75 mm. Brazil (Chapada). October. A single male. 



innocens n. sp. 



