Brazilian Baring 171 



prosternum is flat, constricted at apex and, in the male, bears two 

 rather long and slender, porrect processes, separated by a large, 

 elongate-oval, very deep excavation, the coxae separated by fully 

 their own width. The femora are but feebly inflated, mutic and 

 finely, sparsely punctate, the tarsi very moderate, subglabrous 

 above. The prothorax is strongly but not abruptly tubulate at 

 apex, and the basal lobe is wholly obsolete, the scutellum flat, 

 quadrate, and the elytra somewhat undulated and grooved. The 

 three species at hand are the following: 



Squamosity at the base of the second interval dense, whitish as usual, and com- 

 posed of slender squamules 2 



Squamosity at the base of the second interval not dense, consisting of only a few 

 very sparse, long and slender squamules 3 



2 — Body oblong-suboval, only moderately convex, shining, black and glabrous, 

 except as stated; beak (cf) arcuate, cylindric, finely punctulate, evenly 

 cylindric and distinctly longer than the head and prothorax, the antennae 

 blackish, or ( 9 ) shorter than in the male and relatively somewhat thicker, 

 shorter than the head and prothorax, the latter (o 71 ) fully as long as wide, 

 with long and gradually formed tubulation, or ( 9 ) a fifth wider than long, 

 with much shorter and more abruptly formed tubulation; sides subevenly 

 and distinctly arcuate, broadly subparallel basally, the tubulation a little 

 less than half as wide as the base; surface minutely, sparsely punctulate; 

 base broadly, subangularly arcuate; scutellum quadrate, very little shorter 

 than wide; elytra a third (o 71 ) or a fourth ( 9 ) longer than wide, subparabolic, 

 with rapidly obtuse apex, very little wider than the prothorax and barely 

 one-half (cf) or about three-fifths ( 9) longer, the humeri broadly rounded 

 and but slightly prominent; grooves moderate, deep, smooth; intervals 

 nearly five times as wide as the grooves, finely and confusedly punctulate, 

 more distinctly externally; undulation of the surface distinct; under surface 

 finely, sparsely punctate, the abdomen convex, not modified sexually. 

 Length 5.2-5.7 mm.; width 2.35-2.48 mm. Brazil (Santarem). Two 

 specimens oblongula n. sp. 



Body larger but otherwise nearly similar; beak ( 9) rather thick, cylindric and 

 arcuate, finely, sparsely punctate and distinctly shorter than the prothorax; 

 antennae piceous, the club conoidal; club fully as long as the preceding 

 five joints; prothorax as long as wide, the sides subparallel, broadly arcuate, 

 gradually more rounding and converging beyond about the middle to the 

 broadly concave constriction, the tubulation long and gradual, as in the 

 male of the preceding species, truncate, sparsely punctate and less than 

 half as wide as the base, which is as in the preceding; surface finely and 

 sparsely but somewhat less indistinctly punctulate; scutellum larger, quad- 

 rate, flat; elytra similar, except that the sides are not quite so oblique and 

 the apex more broadly obtuse, a little wider than the prothorax and scarcely 

 one-half longer, only a fifth longer than wide; grooves very slightly coarser; 

 intervals with slightly more distinct diffused punctulation, similarly flat but 

 becoming narrow and cariniform apically; under surface finely, sparsely 

 punctulate. Length 6.2 mm.; width 2.88 mm. Brazil (Chapada). Octo- 

 ber. One female specimen convexiventris n. sp. 



3 — Form oblong-suboval, very moderately convex above; beak (9) thick and 

 arcuate, evenly cylindric, finely, sparsely punctate and as long as the pro- 

 thorax, the antennae of the usual type; prothorax about as long as wide, in 

 form, punctuation and long gradual tubulation, nearly as in the preceding; 



