156 Memoirs on the Coleoptera 



and legs also bears a very slender whitish squamule. The beak is 

 rather slender, strongly arcuate as a rule and closely sculptured, 

 separated from the head by a rather deep sulcus, the mandibles 

 dentate and strongly decussate; the antennae are moderate and 

 somewhat behind the middle, the first funicular joint stouter and 

 as long as the next four joints combined, these being subequal, the 

 outer joints gradually broader, the club elongate-oval, strongly 

 segmented, gradually formed and fully as long as the preceding 

 five joints. The prosternum is only very faintly impressed, the 

 coxae moderately separated and having their inner part often in 

 the form of an elevated plate; this is sometimes invisible, however, 

 and I have been unable to discover its significance. The femora 

 are slender, strongly, closely punctate and wholly unarmed, and 

 the tarsal claws are well developed, straight and basally connate; 

 the prothorax is not very definitely tubulate and the scutellum is 

 small, flat and oblong. There are at hand the following three 

 species : 



Beak notably long and strongly, evenly arcuate; sexual differences very slight, 

 not observable on the abdomen, where the first suture is strongly arcuate at 

 the middle 2 



Beak less long or arcuate; abdomen of the male moderately impressed at base, 

 the first suture less arcuate medially .• 3 



2 — Form rather broadly and very evenly oval, convex, deep black and polished ; 

 beak ( 9 ) slightly shorter than the elytra, very much more than half as long 

 the body, strongly, evenly arcuate, constricted at the head, densely sculp- 

 tured, a little more slender in about apical half; antennae rather slender, 

 black ; prothorax a third wider than long, the sides strongly converging, strongly 

 and very evenly arcuate from base to a very short and scarcely visible 

 apical constriction, the apex truncate and three-sevenths as wide as the base; 

 surface with coarse, deep and close-set punctures laterally, becoming small, 

 feeble and sparse medially and especially broadly toward base throughout; 

 basal lobe small, gradual, feebly sinuate at the middle of the apex; scutellum 

 flat, parallel, one-half longer than wide; elytra scarcely a fifth longer than 

 wide, only very slightly wider than the prothorax and two-thirds longer, 

 evenly elliptic, the humeral prominences virtually obsolete; grooves strong 

 and deep, feebly punctate along the bottom; intervals fiat, each with a 

 single series of very fine and feeble, though rather close-set, punctures; 

 under surface somewhat coarsely and closely punctate, but less coarsely, 

 sparsely so over most of the abdomen. Length 2.6 mm.; width 1.4 mm. 

 Brazil (Chapada — forest). August. One specimen ovulum n. sp. 



Form evenly but somewhat more narrowly oval, smaller in size, similar in colora- 

 tion and lustre; beak strongly arcuate and strongly sculptured, in structure 

 nearly as in the preceding, almost as long as the elytra ( 9 ), evidently shorter 

 but otherwise scarcely differing (cf); antennae nearly similar; prothorax 

 almost similar but somewhat shorter, about two-fifths wider than long, the 

 sculpture and basal lobe almost similar; elytra also very nearly similar, 

 except that they are three-fourths longer than the prothorax and with the 

 punctures of the single interstitial series a little coarser and more conspicuous; 

 abdomen with the punctures similarly loose but rather coarser than in 

 ovulum. Length 2.2-2.3 mm.; width 1. 2-1 .25 mm. Brazil (Chapada). 

 March. Two specimens reducta n. sp. 



