14 Memoirs on the Coleoptera 



rounded at tip, two-fifths wider than the prothorax, a third longer than 

 wide; striae deep but only moderately strong; intervals finely punctulate, 

 rather shining; legs slender. Length (cf) 1.7 mm.; width 0.8 mm. Brazil 

 (Chapada). August. One example pleuralis n. sp. 



Anterior fascia evident though composed of fine sparse whitish squamules; 

 prothorax better developed but with the flanks almost nude, the sparse 

 inconspicuous squamules very fine and hair-like 4 



4 — Outline feebly subrhomboid-oval; body and legs throughout black; elytral 

 squamules very fine, sparse and whitish, dense in a small point at base of 

 fifth interval, also rather dense in an elongate small discal spot at apical 

 fourth or fifth, a little more distinct also though fine and sparse about the 

 scutellum and at the sides of the apex, also in the fascia near basal third; 

 prothorax with very small fine sparse uniform hair-like scales, becoming 

 dense white scales in a small latero-basal spot and another beneath in the 

 apical constriction, also on the met-episterna externally; rostrum evenly 

 arcuate, equal, sculptured and as long as the head and prothorax, the latter 

 well developed, a fifth wider than long, with rounded sides, gradually con- 

 verging anteriorly and briefly at base; punctures very dense; scutellum 

 small, as wide as long, parabolic; elytra oval, a fourth longer than wide, 

 two-fifths wider than the prothorax, the humeri obtusely and only slightly 

 prominent; striae rather coarse and deep; intervals sparsely punctulate, 

 shining. Length (d") 2.25 mm.; width 1.0 mm. Brazil (Santarem). One 

 specimen subbalteatus n. sp. 



Outline nearly as in the preceding but not quite so stout, convex, black, the legs 

 and antennae dark red, the more distinct of the elytral squamules in a broad 

 area feebly traceable also in subbalteatus, but here confined to a triangular 

 discal area having the faint fascia as a base and extending posteriorly to 

 apical third; posterior small spots looser and more confused with an apical 

 denser area; prothorax without trace of white condensation, except a small 

 area far down on the flanks anteriorly; met-episterna similar; beak similar but 

 not quite so long; prothorax also similar but not so large and more parallel, 

 the sides not converging at base; elytra almost as in the preceding but not 

 so broad; body much smaller in size; sexual characters as usual, scarcely 

 discoverable. Length ( 9 ) 1 .8-1.9 mm.; width 0.78 mm. Brazil (Chapada). 

 September and October. Three examples placidus n. sp. 



Outline as in subbalteatus but not so large and with the legs not black but rufous 

 as in placidus; the legs in the former are longer than in either the present 

 species or placidus, color black, the white squamules more conspicuous than 

 in either of those mentioned; on the elytra sparse but distinct in a large 

 area extending from base, narrowing on the suture thence to the apex, the 

 fascia in outer half at basal third conspicuous and dense, the discal posterior 

 spot also dense, narrowly lineate; prothorax with the white squamules 

 distinct throughout except medially, the median line loosely white; flanks 

 and sterna of hind body with more or less dense white scales; beak short, 

 feebly arcuate, squamulose basally; prothorax a third wider than long, the 

 sides parallel and feebly arcuate, more rounding anteriorly; punctures very 

 dense; scutellum different, small, short, transverse, semicircular and finely, 

 closely punctulate; elytra nearly as in the two preceding, the intervals more 

 closely punctulate; abdomen more densely squamulose. Length (c?) 2.0 

 mm.; width 0.85 mm. Brazil (Santarem). One example, .ornatellus n. sp. 



5 — Form not stout, suboval, convex, dark piceous, the fine squamules mostly 

 white, sparsely and evenly distributed over the entire elytra, a little more 

 condensed on the fifth interval near basal third and in a small discal area 

 between third and fourth; the squamules along the median line of the 

 intervals are colored slightly darker; on the prothorax they form a very 



