138 Memoirs on the Coleoptera 



rounded and prominent; mesosternum sinuate; metasternum minutely, 

 sparsely punctulate; first ventral broadly, feebly impressed, finely, densely 

 punctate and squamulose, the lateral and basal parts of the impression, as 

 well as the second segment, less so. Length 6.6 mm.; width 4.0 mm. Brazil 

 (Rio de Janeiro). October. A single male cobaltinus n. sp. 



Body nearly similar in form, polished, bright bluish-green in color; beak (o 71 ) 

 not very slender, cylindric, three-fourths as long as the elytra, rather strongly, 

 closely punctate, broadly arcuate, gradually only a little more so and coarsely, 

 confusedly sculptured basally; antennae near basal third, piceo-rufous, rather 

 slender, the funicular joints as in the preceding, the club abrupt as usual, 

 as long as the preceding six joints, widest near the base, a little more convex 

 there on one side than the other, thence gradually acuminate; prothorax 

 one-half wider than long, the strongly arcuate sides becoming subparallel in 

 about basal third, rounding and convergent thence to the more abrupt 

 tubulation having scattered strong punctures; surface minutely and remotely 

 punctulate; basal lobe extremely broadly but evenly rounded, with distinct 

 lateral impressions, its surface with a few sparse punctures near the apex; 

 scutellum smooth, quadrate, not quite twice as wide as long, the subtruncate 

 apex with a small acute median cusp; elytra subevenly parabolic, a sixth 

 longer than wide, much wider than the prothorax and three-fourths longer, 

 the humeri narrowly rounded and prominent; mesosternum sinuate; meta- 

 sternum very minutely, remotely punctulate; first ventral broadly, feebly 

 impressed, with all the impression, except the periphery, minutely, densely 

 punctulate and finely squamulose, the second segment with* a few small 

 punctures and squamules. Length 6.7 mm.; width 3.8 mm. Brazil (Rio 

 de Janeiro). October. A single male, differing much from the preceding 

 in the form of the beak splendens n. sp. 



Body much larger, elongate, rhomboidal, deep indigo-blue, with faint violaceous 

 reflection; beak moderately slender, cylindric, distinctly and evenly arcuate, 

 a little longer than the head and prothorax, very minutely, sparsely punctu- 

 late, somewhat strongly and very unevenly sculptured at the sides basally, 

 as usual not distinctly separated from the head above, the frontal puncture 

 deep; antennae piceous, behind basal third, the first funicular joint long, 

 equal to the next three, the second fully twice as long as wide, slender and 

 subpedunculate basally, the club asymmetric, as long as the five preceding 

 joints, widest at the middle, but more convex on one side and, on that side, 

 concave thence to the finely acuminate tip; prothorax one-half wider than 

 long, the arcuate sides parallel in basal, strongly oblique in apical, half, the 

 tubulation rather short and gradually formed; basal lobe very short, broad 

 and transversely obtuse, with strong lateral impressions, and with a few 

 punctures; scutellum large, transverse, smooth and parallel, sinuate at base 

 and with the middle of the truncate apex acicularly produced; elytra almost 

 a third longer than wide, much wider than the prothorax and nearly twice 

 as long, the oblique sides almost straight; apex obtusely rounded; pos- 

 terior discal elevation strong, the humeri prominent and strongly rounded; 

 striae extremely fine, feeble and minutely punctulate, 2-4 dilated at base, 

 very coarsely, confusedly excavate at apex; ninth interval broadly convex; 

 mesosternum thick, truncate; base of the abdomen very broadly and feebly 

 concave, finely, closely punctate and with very minute setules in the male. 

 Length 8.0 mm.; width 5.0 mm. Brazil (Santarem). One example. 



enormis n. sp. 



5 — Form very elongate, rhomboidal, nearly as in the last but flatter above; beak 

 ( 9 ) cylindric, finely, sparsely punctulate, a little more coarsely but regularly 

 at the sides basally, almost straight, gradually arcuate in nearly basal half, 

 three-fourths as long as the elytra; antenna? long, piceo-rufous, near basal 



