402 Memoirs on the Coleoptera 



Form less stout, more cuneiform and smaller in size, deep black and polished; 

 beak ( 9 ) very peculiar, nearly straight, a fourth longer than the head and 

 prothorax, exactly cylindric and very smooth, very abruptly thick and 

 strongly, densely punctate at base, this thicker part only slightly longer than 

 wide, the antennae at its apex and at about basal sixth, blackish, longer and 

 more slender than usual, the first two funicular joints much elongated, all 

 the others longer than wide, the club as long as the three preceding; pro- 

 thorax nearly a third wider than long, the parallel and feebly arcuate sides 

 rapidly rounding in about apical third, then sinuous to the apex, the tubulation 

 short, gradual and half as wide as the base; punctures medially minute and 

 remote, but rapidly becoming strong and close laterally and apically, also 

 strong and extremely dense throughout the inferior flanks and coarse, dense 

 and rugose on the upward prosternal slope, where each bears a fine whitish 

 squamule; basal margin with a line of punctures, the lobe and scutellum as 

 usual; elytra with the moderately oblique sides feebly arcuate, subsinuate 

 behind the slight humeral swellings, the apex obtusely rounded, a fourth 

 longer than wide, not quite as wide as the prothorax and scarcely one-half 

 longer; grooves fine but distinct throughout, a little coarser apically, the 

 intervals distinctly punctured laterally and transversely rugose at apex; 

 first ventral suture fine; legs longer, the femora similar but densely punctured, 

 the anterior tibiae more contorted; pygidium nearly similar but still narrower. 

 Length 4.9 mm.; width 2.1 mm. Brazil (Santarem). One specimen. 



subulirostris n. sp. 



9 — Body elongate-ovoidal, polished, black; beak (o 71 ) rather longer than the 

 head and prothorax, strongly and evenly arcuate, gradually and distinctly 

 tapering throughout, unevenly and strongly punctured, nearly smooth dis- 

 tally; antennae piceous, normal and slightly behind the middle; prothorax 

 between a fourth and third wider than long, the sides evenly arcuate, not 

 parallel basally, the apical constriction small and deep, the tubulation abrupt, 

 less than half as wide as the base; surface very smooth, the inferior flanks 

 strongly and sparsely punctate; elytra oval, a third longer than wide, very 

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

 abrupt, very coarsely and deeply exarate at apex, the first basally obsolete 

 and becoming a series of very fine punctures; pygidium flat, semicircular, 

 densely punctate; femora long, slender, the anterior legs long, with broad 

 pallid and very hirsute tarsi, the femur not denticulate; abdomen in the 

 type evenly convex. Length 5.5 mm.; width 2.5 mm. Peru (Rio Toro). 

 One specimen discalis n. sp. 



10 — Form rather stout, subcuneate-oval, convex, deep polished black throughout; 

 beak (o 71 ) rather thin, evenly arcuate, barely at all tapering, as long as the 

 head and prothorax, strongly, loosely punctate at the sides basally, nearly 

 smooth elsewhere; antennae normal, blackish, barely visibly behind the 

 middle; prothorax a fourth wider than long, the sides evenly and moderately 

 arcuate from the base, rapidly subtransverse at apex to the abrupt tubulation, 

 which is about two-fifths as wide as the base; surface with sparse infinitesimal 

 punctulation; elytra three-sevenths longer than wide, the oblique sides 

 feebly arcuate, the apex rather broadly, obtusely rounded, as wide as the 

 prothorax and one-half longer, the humeri distinctly tumid; grooves fine, 

 abrupt, coarsely exarate at apex, the first obsolete in about basal third; 

 pygidium small, flat, vertical, semicircular and very densely punctate; legs 

 rather long, the anterior femora denticulate beneath, the anterior tarsi 

 dilated, very hairy and pale piceous; prosternum with the upward slope 

 alutaceous and asperate; male abdomen flattened and sparsely punctate 

 medio-basally, the first suture fine and obsolescent. Length 5.5 mm.; width 

 2.4 mm. Upper Amazon (Chanchomayo). One specimen., .inornatus n. sp. 



