Brazilian Barinve 479 



base; punctures rather small but deep, separated by two or three times 

 their diameters, scarcely differing but more irregular and shallower at the 

 sides; scutellum minute, rounded; elytra obtusely oval, a fourth or fifth 

 longer than wide, slightly wider than the prothorax and three-fourths longer; 

 grooves somewhat narrow, very gradually and but slightly coarser basally; 

 interstitial punctures fine but evident, in single series; pygidium with the 

 usual coarse dense punctures, evenly and moderately convex; legs short. 

 Length 1.75 mm.; width 0.7 mm. Brazil (Entre Rios). September. One 

 specimen flaccida n. sp. 



8 — Outline notably elongate, the elytra almost one-half longer than wide 9 



Outline oval as usual, the elytra nearly always being much less than one-half 

 longer than wide 10 



9 — Form subparallel, with feebly arcuate sides, subglabrous, with minut^ and 

 slender squamules beneath and in single line along the strial intervals, black, 

 the legs and prothorax piceo-rufous; surface polished, the elytra somewhat 

 alutaceous; beak short, finely but in part rather closely punctate, very 

 feebly arcuate and scarcely over half as long as the prothorax; under surface 

 with erect setae distally; antenna? near basal third, the scape very short; 

 prothorax only a fifth or sixth wider than long, the sides subparallel, feebly 

 arcuate, gradually rounding and oblique in about apical third, the truncate 

 apex four-sevenths as wide as the base; punctures deep, moderately small, 

 separated by twice their widths, gradually coarser and rugulosely dense at 

 the sides, with a distinct narrow smooth line, not attaining base or apex; 

 scutellum very small, rounded, with a deep central fovea; elytra nearly 

 one-half longer than wide, barely wider than the prothorax and three-fourths 

 longer, the sides feebly arcuate and just visibly oblique, the apex obtusely 

 rounded ; grooves almost a third as wide as the intervals, shallow and catenu- 

 late along the bottom, not coarser basally; intervals with single series of 

 fine but distinct, not very widely separated punctures; pygidium as usual 

 in sculpture, strongly convex. Length 3.4 mm.; width 1.35 mm. Argentina 

 (Mendoza). One specimen mendozensis n. sp. 



Form narrower, the size much smaller, very elongate-suboval, convex, glabrous, 

 polished, black throughout, the elytra slightly piceous; beak thick, cylindric, 

 arcuate, finely, loosely punctate and about three-fourths as long as the 

 prothorax; antennae submedial, with oblique cavernous scrobes as usual; 

 prothorax short, nearly one-half wider than long, the sides subparallel, 

 gradually broadly rounding beyond the middle; apex more than half as 

 wide as the base; punctures rather strong and deep, separated by twice 

 their diameters, slightly coarser and closer laterally but not dense, without 

 evident smooth line; scutellum minute, rounded; elytra very nearly one- 

 half longer than wide, the sides but very feebly oblique, nearly straight, the 

 apex obtusely rounded, very slightly wider than the prothorax and two and 

 one-half times as long; grooves moderate, deep, smooth and equal through- 

 out; interstitial punctures very minute, widely separated in single series; 

 pygidium convex; legs rather long. Length 2.6 mm.; width 0.9 mm. 

 Brazil. A single specimen, from Desbrochers des Loges opica n. sp. 



10 — Body rather broadly oblong-oval, strongly convex, deep black, shining and 

 glabrous throughout; beak thick, arcuate, shining, finely, sparsely punctate 

 and three-fifths as long as the prothorax, the latter a fourth wider than long, 

 the sides converging, evenly and distinctly arcuate throughout, gradually 

 becoming parallel at base; apex half as wide as the base; punctures some- 

 what coarse, deep, separated by more than their diameters, smaller medially, 

 coarse, dense and rugose at the sides, with a feebly defined partial smooth 

 median line; scutellum minute, rounded, feebly impressed; elytra a fourth 



