258 Memoirs on the Coleoptera 



8 — Body of the usual rhombic form and feebly convex upper surface, polished, 

 smooth and black, the dense scales of the gradually attenuated inner line 

 extending four-sevenths, the outer line only a fourth or fifth as long as the 

 inner; dense patches of the under surface whiter than usual, arranged almost 

 as in chapadanus; beak ( 9 ) thick in rather more than basal half and somewhat 

 strongly, loosely punctate, thin, cylindrical and smooth in somewhat less 

 than apical half, moderately arcuate and distinctly shorter than the elytra; 

 antennae submedial, black, the cylindric club shorter than the funicle; 

 prothorax a fourth wider than long, with broadly and subevenly arcuate 

 sides, the broad tubulation much more than half as wide as the base, the 

 basal lobe short, gradual, punctate along the margin and narrowly truncate 

 at the middle of the apex; scutellum small, almost rounded, as long as wide; 

 elytra triangular, with broadly arcuate sides, narrow apex and moderate 

 smooth grooves, a third longer than wide and slightly less than twice as 

 long as the prothorax. Length 3.9 mm.; width 1.85 mm. Brazil (Santa- 

 rem). One female reductus n. sp. 



9 — Scales of the third strial interval forming a small spot, only a little longer 

 than wide, at the extreme base; body more broadly rhomboidal. Integu- 

 ments deep black, polished and smooth above, finely, loosely and unevenly 

 punctate beneath, where the areas of dense whitish scales are confined to 

 the interspinal part of the prosternum, the met-episterna and narrowly at 

 the sides of the last four ventrals; beak (d" ) evenly, rather strongly arcuate, 

 as long as the elytra, very evenly tapering from base to apex, cylindric and 

 nearly smooth, very moderately and loosely punctate at the sides basally; 

 antennae slightly behind the middle, the scape piceous and shorter than in 

 the preceding group, the funicle relatively longer, the club suboval, gradually 

 pointed from its middle and as long as the four preceding joints; prothorax 

 a fifth wider than long, the sides very evenly and moderately arcuate to the 

 abrupt and somewhat punctate tubulation, which is less than half the basal 

 width; basal margin with an impressed row of punctures, the lobe extremely 

 broad and feeble, almost obsolete; scutellum quadrate, not quite a third 

 wider than long; elytra triangular, with arcuate sides, narrowly blunt apex 

 and notably prominent humeri, a fourth wider than the prothorax and 

 hardly twice as long, the grooves rather fine, smooth; male with the abdomen 

 scarcely more than broadly flattened medially at base and very minutely, 

 loosely punctulate, wholly glabrous, the prosternum with two very short 

 erect spines, separated by a small circular perforation, which extends ante- 

 riorly to the constriction in a feeble and narrowly impressed line; anterior 

 tibiae fimbriate internally in apical half. Length 4.3 mm.; width 2.2 mm. 

 Brazil (Chapada — campo). November. A single male specimen. 



parvinotatus n. sp. 

 Scales of the third interval forming a line in about basal third to fifth; body nar- 

 rower 10 



10 — Dense white line of the third interval narrow, parallel and only between a 

 fifth and sixth as long as the elytra. Body narrowly subrhombic, piceous- 

 black, polished and smooth; dense scales of the under surface conspicuous 

 on the prosternum, the metasternum sublaterally, the met-episterna and at 

 the sides of the last four ventrals, sparse at the sides of the mesosternum and 

 finer and remote at the latero-basal margin of the prosternum, very few in 

 number also on the mes-epimera; beak smooth, sparsely punctate, strongly, 

 evenly arcuate (cf), or not quite so long and more arcuate basally (9), 

 distinctly shorter than the elytra and with the antennae medial in both sexes, 

 only very gradually narrowed apically; antennal club (cf ) elongate-oval, as 

 long as the preceding five or six joints, a little shorter and more broadly 

 oval ( 9 ); prothorax a third wider than long, the sides subparallel and feebly 



