192 Memoirs on the Coleoptera 



tionally dense and relatively rather larger in size; beak (9) three-fourths 

 as long as the elytra, only moderately arcuate and moderately dilated, 

 densely sculptured basally, gradually thin, shining and more finely, loosely 

 punctured distally, very feebly gibbous at the extreme base, the head strongly 

 convex as usual, the antennae piceous-black; prothorax not quite one-half 

 wider than long, the converging sides subevenly arcuate to the pronounced 

 tubulation, which is only a little less than half as wide as the base; punctures 

 very deep and strong, almost contiguous but not very coarse, the smooth 

 median line distinct and subentire; scutellum narrower than long, feebly 

 emarginate; elytra nearly a third longer than wide, evenly and obtusely 

 parabolic, much more than twice as long as the prothorax, the grooves and 

 general sculpture nearly as in the preceding; first ventral suture distinct, 

 subangularly arcuate at the middle; third and fourth segments glabrous, 

 except at the sides, the last three sutures moderately reflexed at the sides. 

 Length 3.8 mm.; width 2.1 mm. Brazil (Chapada). March. A single 

 female specimen duplicatus n. sp. 



Form, sculpture and vestiture nearly as in the last, except that the thoracic 

 tubulation is shorter and feebler, the pronotal punctures much coarser, 

 narrowly separated, the scutellum shorter, the third and fourth intervals 

 with similar dense and shining, yellowish scales, as in duplicatus, but also 

 with the second interval, from just behind the middle nearly to the apex, 

 and the fifth and sixth in short basal lines, similarly squamose; pale scales 

 throughout above a little less dense; on the under surface the scales of the 

 metasternum and sides of the first two ventrals are less conspicuously dense; 

 beak nearly similar throughout; convex abdomen (o 71 ) with a feeble obtuse 

 concavity along the middle basally, not clothed or punctured differently 

 from the rest of the surface, the prosternal spines very short, erect and 

 barely as long as the basal thickness of the beak. Length 3.7 mm.; width 

 2.0 mm. Brazil (Chapada). March. One male specimen, amoenus n. sp. 



Form nearly as in duplicatus but narrower and much smaller, similar in color and 

 sculpture, except that the legs are more piceous, and also in ornamentation 

 above, except that the dense lines along the third and fourth intervals are 

 narrower and looser, amounting in fact to scarcely more than an uneven 

 double line of scales on each, and there are no isolated pale scales externally; 

 on the under surface the pale scales, in disposition and density, are not as 

 in duplicatus, but as in amcenus, and the broad lateral vitta of the pronotum 

 is not rufous but white; beak similar; prothorax also as in duplicatus, except 

 that there is scarcely any tubulation at apex, this being strongly marked in 

 that species; the smooth scutellum is shorter, more truncate and more 

 impressed; elytra a little narrower, narrowly parabolic, much more than 

 twice as long as the prothorax. Length 2.85 mm.; width 1.45 mm. Brazil 

 (Chapada). March. A single female tenellus n. sp. 



II — Body subrhombic-oval, feebly shining, deep black throughout, the oblique 

 lateral pronotal vittae and the subquadrate elytral spots of dense scales 

 respectively feebly reddish and nearly white; whitish scales of the under 

 surface dense along the prosternum, on the metasternum and met-episterna, 

 toward the sides of the abdomen and, in more shaggy manner, along the 

 latter medio-basally, the prosternal dense area and the lateral pronotal 

 vittae almost meet at the sides apically; beak moderately arcuate, four- 

 fifths as long as the elytra, inflated, and above more arcuate, basally, slender, 

 flattened and less sculptured distally, the head very convex; antennae rather 

 behind the middle, slender, piceous; prothorax one-half wider than long, the 

 converging sides strongly, evenly arcuate to the short tubulation; punctures 

 moderately coarse, strong, dense, the smooth median line not distinct, the 

 scutellum smooth, slightly wider than long, sinuate at apex, with acute 



