416 Memoirs on the Coleoptera 



an extremely slender claw- joint and very small close-set but free 

 claws. The species at hand are three in number as follows: 



Thoracic apex broadly truncate from the rounded side angles across the median 

 parts, there being as usual no tubulation. Body oblong, with arcuate sides, 

 moderately shining, black, with piceous legs; beak extremely short, only 

 twice as long as thick and much less than half as long as the prothorax, 

 rather shining, separated by a very faint impression and with its upper 

 outline evenly and feebly arcuate; prothorax transverse, three-fifths wider 

 than long, the sides moderately converging and feebly arcuate from base to 

 the rapidly rounded apical angles; head much less than half as wide as the 

 thoracic base; punctures fine and sparse, gradually larger toward the sides, 

 where they become rather coarse but separated; elytra short, not quite as 

 long as wide, very broadly obtuse at apex, the sides arcuate and but slightly 

 oblique, the humeri broadly swollen, slightly wider than the prothorax and 

 one-half longer; grooves deep, punctate, coarser gradually toward base; 

 intervals with single series of small but evident punctures, becoming larger 

 basally; pygidium (d") rather wider than long, convex, subvertical and 

 coarsely, closely punctate, without propygidium; under surface strongly, 

 closely punctured, the abdomen in the type very evenly convex, finely and 

 sparsely punctulate, more closely at apex, the first suture obsolete medially. 

 Length 2.4 mm.; width 1.45 mm. Brazil (Entre Rios). One specimen. 



humerosa n. sp. 



Thoracic apex rounded as usual, without trace of tubulation 2 



2 — Body broadly oblong-oval, convex, feebly shining, black, with feeble subaeneous 

 lustre, the legs black; beak cuneiform, rather shining, nearly three times as 

 long as wide, straight, less than half as long as the prothorax, separated by 

 a rather evident reentrant angle, the upper outline straight, becoming 

 arcuate basally, more especially in the male; prothorax two-thirds wider 

 than long, the sides broadly and rather strongly arcuate, becoming gradually 

 straighter and feebly divergent toward base; apex much less than half as 

 wide as the base; punctures very fine and sparse, gradually stronger but not 

 very coarse and distinctly separated toward the sides, the median line smooth 

 as usual; scutellum obtuse, ogival; elytra oval, with more arcuate and 

 oblique sides and more narrowly obtuse apex than in the preceding, a little 

 wider than the prothorax and scarcely three-fifths longer; grooves shallow 

 and not abrupt, rather fine, feebly crenulate or catenulate, the fine uniserial 

 interstitial punctures not coarser toward base; abdomen very shining, 

 evenly convex in both sexes. Length 2.7-2.85 mm.; width 1. 6-1 .65 mm. 



Brazil (Santarem). Five specimens cuneirostris n. sp. 



Body smaller, convex, more strongly and evenly oval, black throughout, with the 

 legs black; beak about twice as long as wide, three-sevenths as long as the 

 prothorax, feebly separated, more conical (o 71 ), subparallel (9); antennal 

 club not quite so thick, very small; prothorax three-fifths wider than long, 

 the sides converging rather strongly and very evenly, distinctly arcuate 

 from base to apex, the latter much less than half as wide as the base, the 

 basal lobe more narrowed apically than usual; punctures strong and sepa- 

 rated by about their own diameters, becoming but little larger but dense 

 and longitudinally subcoalescent toward the sides, the smooth median line 

 well defined; scutellum freer, small, subquadrate, wider than long and 

 feebly impressed; grooves rather coarse and deep, catenulate, gradually 

 much finer posteriad; intervals with single series of rather large and close-set, 

 subtransverse punctures; pygidium (d 71 9 ) nearly as in cuneirostris; abdomen 



