478 Memoirs on the Coleoptera 



sparsely punctulate, strongly arcuate above, straight beneath, three-fourths 

 as long as the prothorax, the latter between a third and fourth wider than 

 long, the sides moderately convergent and nearly straight, rounding evenly 

 in about apical third; apex scarcely half as wide as the base; punctures 

 moderately coarse, shallow and barely rugulose at the sides, strong but 

 separated by two or three times their diameters elsewhere, with an oblong 

 median smooth space at base; scutellum small, ogival; elytra a fourth 

 longer than wide, rather obtusely parabolic, at the slightly prominent humeri 

 distinctly wider than the prothorax, not quite twice as long; grooves rather 

 narrow and shallow, almost smooth, somewhat dilated and more distinctly 

 punctured near the base; interstitial series composed of distant infinitesimal 

 punctules; pygidium coarsely, densely punctate and distinctly convex; legs 

 very short. Length 2.2 mm.; width 1.0 mm. Brazil (Santarem). One 

 specimen, apparently female inanis n. sp. 



Body a little larger and rather more elongate, oval, polished, glabrous and similar 

 in coloration, the legs evidently longer and more slender; beak very short, 

 feebly arcuate, finely, loosely punctate, scarcely three times as long as wide 

 and barely more than half as long as the prothorax, the antenna? concolorous 

 and obscure rufous; prothorax a fourth or fifth wider than long, the slightly 

 converging sides feebly arcuate, gradually more so distally; apex a little 

 less than half as wide as the base; punctures not very coarse, shallow and 

 well separated at the sides, only slightly smaller but deeper and separated 

 by two to three times their diameters elsewhere, without trace of regular 

 median smooth line; scutellum very small, longer than wide and sharply 

 ogival; elytra oval, moderately obtuse at tip, at the feebly tumid humeri 

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

 narrow and deep, nearly smooth, gradually somewhat coarser and more 

 punctate basally; interstitial series composed of very small punctures, 

 becoming more distinct, closer and confused throughout toward base; 

 pygidium moderate, sculptured as usual, gradually becoming prominent 

 below the middle. Length 2.35 mm.; width 1.1 mm. Brazil (Uacarizal). 

 February. One specimen obliviosa n. sp. 



7 — Form oblong-oval, convex, glabrous, polished and rufo-piceous, the legs but 

 little paler rufous; beak blackish, moderately thick, feebly arcuate, minutely, 

 loosely punctulate and almost four-fifths as long as the prothorax; antennae 

 blackish-piceous, the club obscure rufous; prothorax fully a fourth wider 

 than long, the sides feebly converging and nearly straight, rather rapidly, 

 evenly rounding in about apical third to the apex, which is somewhat more 

 than half as wide as the base; punctures rather large but extremely shallow, 

 and irregularly well separated at the sides, somewhat small but deep and 

 separated by three times their diameters discally, the median smooth line 

 well defined, wide and entire; scutellum as in the preceding; elytra slightly 

 over a fourth longer than wide, evenly parabolic, at the feebly tumid humeri 

 distinctly wider than the prothorax, almost twice as long; grooves fine, 

 nearly smooth, but slightly coarser basally; punctures of the single inter- 

 stitial series widely separated and so minute as to be seen only with difficulty; 

 pygidium very densely punctate, subevenly and moderately convex. Length 

 1.85 mm.; width 0.8 mm. Brazil (Santarem). One specimen. 



despecta n. sp. 



Form rather narrowly oblong-oval, shining, glabrous, evenly piceo-rufous in color, 

 the legs somewhat paler; beak nearly as in the preceding but scarcely three- 

 fourths as long as the prothorax, the latter a fourth wider than long, the 

 sides very moderately but evenly arcuate throughout, becoming subparallel 

 at base; truncate apex unusually broad, about three-fifths as wide as the 



