Brazilian Baring 457 



nearly similar but somewhat larger; prosternal canal highly polished and 

 subimpunctate, not alutaceous and finely micro-reticulate as in sospes, and 

 with the posterior bifurcating prominence in high relief, but less abrupt, the 

 posterior lobe rather strongly sinuate at apex, with sharply marked angles. 

 Length 2.4 mm.; width 1.15 mm. Brazil (Chapada). September. One 

 specimen cribrum n. sp. 



Body oval, convex, much smaller in size, deep black throughout, the elytra 

 opaculate posteriorly; beak (o 71 ) rather thick, distinctly arcuate, less than 

 four times as long as wide in lateral profile, punctate and three-fourths as 

 long as the prothorax; antenna? distinctly beyond the middle; prothorax 

 only a fifth or sixth wider than long, the sides converging and distinctly, 

 subevenly arcuate throughout; apex four-sevenths as wide as the base; 

 punctures strong but only moderately coarse, close at the sides, but separated 

 by their own widths medially, without median smooth line; scutellum very 

 small, circular; elytra obtusely oval, only a fifth longer than wide, slightly 

 wider than the prothorax and barely over one-half longer; grooves unusually 

 narrow; punctures of the interstitial series moderate, the surface sericeous; 

 pygidium moderate; prosternal channel smaller, narrower and shallower 

 than in either of the preceding, dull in lustre, the bifurcating prominence 

 obtuse but in rather high relief, the posterior lobe broadly truncate. Length 

 1.85 mm.; width 0.8 mm. Brazil (Chapada — forest). August. One speci- 

 men ovulum n. sp. 



17 — Form oval, integuments dull from density of sculpture, black; beak (9) 

 rather thick, densely punctate, distinctly and evenly arcuate and even in 

 thickness throughout, scarcely three-fourths as long as the prothorax, or (c? ) 

 very nearly similar but a little shorter; antennae ( 9 ) medial, or (o 71 ) beyond 

 the middle, the club very short, thick and abrupt, with the basal segment 

 partially polished and glabrous; prothorax very nearly as long as wide, 

 the sides moderately converging, evenly and evidently arcuate throughout; 

 apex half as wide as the base; punctures moderate, densely crowded and 

 without trace of smooth median line; basal lobe narrowly rounded at tip; 

 scutellum free, shining, transversely oval; elytra oval, not very obtuse 

 behind, a fifth longer than wide, distinctly wider than the prothorax and 

 barely one-half longer; grooves coarse, not very different at the ends; inter- 

 vals only one-half wider than the grooves and with single series of coarse, 

 nearly contiguous punctures; pygidium small, semicircular and nearly flat; 

 entire under surface with moderate but extremely dense and crowded punc- 

 tures; bifurcating prominence of the prosternum in very high relief, the 

 large posterior lobe sinuato-truncate. Length 2.0-2.45 mm.; width 0.85- 

 1.2 mm. Brazil (Chapada — campo). May and October. Five specimens. 



densissimus n. sp. 



18 — Pronotal punctures fine and sparse, a little larger and not so sparse at the 

 sides, without trace of median smooth line; upper surface aeneous and shining. 

 Body evenly and narrowly suboblong-oval, convex, shining, much more 

 feebly sculptured than usual; beak (9) moderately slender, even in thick- 

 ness, distinctly and evenly arcuate, finely, sparsely punctate and as long as 

 the head and prothorax; antennae medial, the club small, oval; prothorax 

 a fifth wider than long, feebly constricted laterad at apex and very feebly 

 subtubulate, the sides slightly converging and distinctly and very evenly 

 arcuate throughout; basal lobe narrowly rounded at tip; scutellum small, 

 free and rounded; elytra obtusely oval, a third longer than wide, slightly 

 wider than the prothorax and not quite twice as long; grooves fine, gradually 

 coarse and punctate basally, slightly coarser but not exarate distally; inter- 

 vals shining, with single series of remote infinitesimal punctures; pygidium 

 very small and nearly flat; under surface sparsely punctate. Length 2.45 

 mm.; width 1.0 mm. Brazil (Santarem). One specimen. ... serenus n. sp. 



