Brazilian Baring 185 



rather dull in lustre, vestiture nearly as in the preceding, the squamules 

 whitish as usual in the genus; beak (cf) strongly arcuate, evenly cylindric 

 and more than half as long as the body; prothorax of the male evenly conical, 

 with nearly straight sides and almost as long as wide, much more finely 

 rugulose than in the same sex of caducus and nearly as in the female of that 

 species; scutellum small and quadrate, impressed medially behind; elytra 

 narrower, nearly a third longer than wide, distinctly wider than the pro- 

 thorax, less than twice as long; grooves very coarse, punctate along the 

 bottom; intervals not very evidently wider than the grooves, with even 

 series of distinct, well separated punctures; abdomen of the male convex, 

 virtually unimpressed basally, the prosternal spines extremely short and 

 almost vestigial in the type; female a little stouter than the male, with 

 similar though basally subobsolete thoracic sculpture. Length 2.2-2.4 mm.; 

 width 0.85-1.05 mm. Brazil (Chapada). August. Two specimens. 



sulcatulus n. sp. 



5 — Form nearly as in caducus but piceous-black; scanty vestiture similar; beak 

 ( 9 ) a little shorter and decidedly more arcuate, barely more than half as 

 long as the body, the piceous antennae almost similar; prothorax narrower, 

 only a little wider than long, with less converging sides and relatively broader 

 apex than in the female of caducus, where the apex is barely half as wide as 

 the base, here it is distinctly more than half as wide as the base; sculpture 

 and basal lobe similar; scutellum shorter, impressed; elytra subsimilar but 

 somewhat shorter, nearly twice as long as the prothorax in caducus, but here 

 evidently less; grooves coarse, deep and punctate; intervals similarly a 

 little wider than the grooves, with single lines of similarly distinct but more 

 widely separated punctures; under surface nearly similar, the legs evidently 

 shorter. Length 2.45 mm.; width 1.25 mm. Brazil (Santarem). One 

 female specimen rugicollis n. sp. 



6 — Pronotal rugae wanting only toward base. Form rather narrowly rhombic- 

 oval, black, rather shining, the slender setulae nearly as in caducus above 

 and beneath, but relatively somewhat less dense on the met-episterna; beak 

 (c?) evenly cylindric, strongly and evenly arcuate, dull, closely sculptured 

 and sparsely, very finely squamulose, distinctly more than half as long as 

 the body; prothorax conical, with very feebly arcuate sides, the truncate 

 apex half as wide as the base; rugae coarse and shining, abruptly ending 

 near basal fourth; median line as usual, not differentiated; scutellum small, 

 emarginate behind; elytra parabolic, fully a fourth longer than wide, four- 

 fifths longer than the prothorax and distinctly wider; grooves very deep 

 and abrupt, punctured along the bottom; intervals rather distinctly wider 

 than the grooves, with single series of distinct but somewhat well separated 

 punctures; male with the basal abdominal impression narrow, very feeble 

 and almost obsolete, the prosternal spines slender, obscure testaceous and 

 a little more than half as long as the hind tibiae. Length 2.55 mm.; width 

 1.2 mm. Brazil (Chapada). March. One specimen clemens n. sp. 



Pronotal rugae wanting on most of the disk, evident laterally and anteriorly. ... 7 



7 — Body subrhombic-oval, shining, black, the squamules as in caducus but in 

 great part wanting on the pronotum, similar beneath; beak (o 71 ) just 

 visibly tapering, strongly arcuate, barely more than half as iong as the 

 body, the antennae slender and blackish; prothorax evenly conical, nearly 

 as long as wide, well developed; apex half as wide as the base; rugae narrow, 

 shining, well separated; scutellum small, emarginate behind as usual; elytra 

 parabolic and as usual rather strongly rounded at tip, a fourth longer than 

 wide, slightly wider than the prothorax but, somewhat unusually, only 

 three-fourths longer; grooves coarse, deep and abrupt, strongly punctured 

 along the bottom; intervals evidently wider than the grooves and with 



