480 Memoirs on the Coleoptera 



(cf) to a fifth ( 9 ) longer than wide, slightly wider than the prothorax and 

 two-thirds longer; grooves deep, moderately coarse, but little wider basally, 

 nearly smooth; intervals with series of rather small but distinct punctures, 

 widely separated but closer and rather coarser basally; pygidium somewhat 

 tumid along the median line. Length 2.35-2.65 mm v ; width 1. 0-1.2 mm. 

 Brazil (Santarem). Two specimens jocosa n. sp. 



Body more narrowly oblong-oval, convex, polished, glabrous and black, with 

 scarcely aeneous lustre; beak short, thick, finely, sparsely punctate, slightly 

 arcuate and two-thirds as long as the prothorax, the antennae as usual; 

 prothorax a fourth wider than long, the sides slightly convergent and feebly 

 arcuate, becoming oblique and nearly straight in rather less than apical third; 

 apex half as wide as the base; punctures rather small, separated by two or 

 three times their diameters medially, coarse but very shallow and contiguous 

 at the sides, without impunctate line, except in a small oval area behind the 

 middle; scutellum small, somewhat longer than wide, flat and sharply 

 ogival; elytra obtusely oval, a fourth longer than wide, slightly wider than 

 the prothorax and three-fourths longer; grooves deep, moderate in width, 

 nearly smooth and but little wider basally; intervals two to three times as 

 wide as the grooves; interstitial punctures somewhat fine but distinct, 

 variably separated in single series; pygidium small, semicircular and feebly 

 convex; legs shorter than in the preceding and with thicker and more oval 

 femora. Length 2.35 mm.; width 1.0 mm. Brazil (Santarem). One 

 specimen defecta n. sp. 



Body larger, more oblong and relatively less convex, polished black, the elytra 

 faintly picescent, glabrous, not definitely submetallic; beak evenly arcuate, 

 more evenly cylindric than usual, finely, rather sparsely punctate and 

 scarcely three-fifths as long as the prothorax, the latter two-fifths wider than 

 long, the sides feebly converging and slightly arcuate, gradually rounding 

 and oblique in scarcely apical third; apex not quite half as wide as the base; 

 punctures sparse and very fine, gradually becoming rather strong and irreg- 

 ular but not very close-set at the sides, without median impunctate line; 

 scutellum small, as wide as long, very roundly ogival; elytra between a 

 fourth and third longer than wide, obtusely oval, the sides but slightly 

 oblique and feebly arcuate, slightly wider than the prothorax and three- 

 fourths longer; grooves moderate, sensibly broader and feebly crenate 

 basally; intervals with more or less confused series of minute and well 

 separated punctures; pygidium obtusely and feebly tumid along the middle 

 and subumbonate apically; legs moderately long and slender. Length 

 3.0 mm.; width 1.3 mm. Brazil (Chapada — forest). September. One 

 specimen chapadana n. sp. 



11 — Form oblong-oval, convex, rather shining and deep black throughout, the 

 pronotal setae erect, those of the elytra erect and brownish, and with less 

 erect, white squamules condensed for a short space just before the middle of 

 each interval, these lines forming a transverse fascia; slender whitish squam- 

 ules beneath sparse; beak thick, arcuate, distinctly but loosely punctate and 

 four-fifths as long as the prothorax, the antennae medial, with moderate 

 club; prothorax a fourth wider than long, the sides feebly convergent and 

 slightly arcuate, more rounding at apex to the short broad tubulation, which 

 is four-sevenths as wide as the base; punctures rather coarse, deep, still 

 coarser and contiguous laterally, separated by nearly their widths medially, 

 with distinct median smooth line, obliterated anteriorly; scutellum well 

 developed, free and quadrate, punctured centrally; elytra obtusely oval, 

 a fourth longer than wide, at the slightly prominent humeri evidently wider 

 than the prothorax, three-fourths longer; surface with two feeble lateral 



