Brazilian Baring 161 



Micropalocus n. gen. 



The body here is more narrowly oval and less closely clothed 

 than in the three preceding Palocus-Yike generic groups, the squam- 

 ules usually being in single line on the strial intervals, and they are 

 among the smallest known members of the tribe Centrinini, having 

 also, I think, some alliance with the Zygobarid series. They are 

 probably found on flowers in clearings, or on the campo, as in the 

 preceding genera. The beak is rather thick, separated from the 

 head by a very fine and feeble transverse impressed line, somewhat 

 strongly and closely sculptured and, apically on the upper surface, is 

 usually feebly carinate; the mandibles are bifid and moderately 

 decussate; antennae short, submedial, with very short funicle, the 

 outer joints increasing in width and closely joined, the first as long as 

 the next three, the club unusually large, elongate-oval, subequally tri- 

 sected by the sutures and usually as long as the entire funicle. The 

 femora are mutic, the tarsal claws slender, connate at base, the 

 prosternum feebly impressed and the anterior coxae well separated. 

 The prothorax is not tubulate at apex, and the scutellum is very 

 small, quadrate and glabrous; the punctures of the elytral striae 

 are nude. The five species in my collection may be distinguished 

 as follows: 



Pronotal punctures coarse, deep, separated by their own diameters or less 2 



Pronotal punctures less coarse and especially shallower, separated by more than 

 their own diameters 3 



2 — Legs black. Body almost evenly elongate-oval, convex, black, somewhat 

 shining, the squamules very fine, white, rather sparse, evenly distributed on 

 the pronotum, forming even single lines on the strial intervals, sparse beneath, 

 finer on the legs; beak thick, arcuate, compressed and closely sculptured, 

 about as long as the head and prothorax, apparently differing but little 

 sexually; prothorax nearly a third wider than long, the sides very moderately 

 converging, almost straight, gradually a little more rounded, though scarcely 

 at all constricted, apically, the apex slightly more than half as wide as the 

 base; basal lobe short, broadly rounded; elytra oval, a fourth longer than 

 wide, evidently somewhat wider than the prothorax and not quite twice as 

 long, the striae strong and deep but not very coarse, the flat intervals each 

 with a single line of fine distinct punctures. Length 1. 6-1. 75 mm.; width 

 0.75-0.85 mm. Brazil (Santarem). Five specimens sparsellus n. sp. 



Legs obscure rufous and distinctly more slender. Body smaller and narrower, 

 nearly similar in sculpture and vestiture, the beak shorter, scarcely longer 

 than the prothorax, the latter shorter, nearly two-fifths wider than long, the 

 sides more nearly parallel, rounding more abruptly and rapidly in about 

 apical third, the apex almost three-fifths as wide as the base; basal lobe not 

 quite so strong; elytra more narrowly oval, somewhat more than a fourth 

 longer than wide, more distinctly wider than the prothorax and scarcely 

 twice as long, the sculpture and vestiture nearly similar, except that the 

 white linear squamules are finer, less close and much less conspicuous. 

 Length 1.4 mm.; width 0.62 mm. Brazil (Santarem). One example. 



indigens n. sp. 



T. L. Casey, Mem. Col. X, Aug. 1922. 



