456 Memoirs on the Coleoptera 



wide, only slightly wider than the prothorax and three-fifths longer; grooves 

 moderate, scarcely at all coarser distally and only slightly so basally, ob- 

 scurely punctate; intervals with the uniserial punctures shallow and not 

 notably coarse; pygidium dense, small, semicircular and moderately con- 

 vex; bifurcating projection of the prosternum in low relief, the posterior 

 lobe broadly sinuato-truncate. Length 2.5 mm.; width 1.2 mm. Brazil 

 (Chapada — forest). November. One specimen habilis n. sp. 



Upper surface partly subopaque, with the pronotum moderately shining, the 

 elytra throughout very dull. Body as large as in valens and somewhat more 

 elongate, oval, deep black throughout; beak (cf ) short, thick, feebly arcuate 

 and not quite three-fourths as long as the prothorax, even in thickness and 

 strongly punctured, or ( 9 ) longer, four-fifths as long as the prothorax, evenly 

 and more strongly arcuate, very slender and smooth, abruptly thick and 

 strongly punctured in basal two-fifths; antennae at two-fifths ( 9 ), or slightly 

 beyond the middle (cf ); prothorax a fifth wider than long, the feebly con- 

 verging sides almost straight, rapidly rounding and oblique in apical third, 

 the apex not evidently tubulate; basal lobe narrowly rounded at apex; 

 punctures moderately coarse and dense throughout, very narrowly separated 

 medially, sometimes with a feeble smooth line behind the middle; scutellum 

 well developed, transversely subquadrate; elytra oval, a fourth to third 

 longer than wide, evidently wider than the prothorax and three-fourths 

 longer; grooves coarse and abrupt, gradually somewhat exarate distally; 

 intervals nearly twice as wide as the grooves, densely subopaque and with 

 single series of rather large but obscure, close-set punctures; bifurcating 

 projection of the prosternum rather long but in very low relief, the posterior 

 lobe truncate. Length 3.2-3.4 mm.; width 1. 35-1 .5 mm. Brazil (Chapada 

 — campo). October and November. Five specimens alutaceus n. sp. 



Upper surface feebly micro-reticulate and somewhat shining; form less broadly 

 oval 16 



16 — Body oval, convex, deep black throughout; beak (cf) short, three-fourths 

 as long as the prothorax, moderately slender and even in thickness and 

 curvature, rather closely punctate, or ( 9 ) nearly similar but a trifle longer; 

 antennae short, the club rather broadly oval; prothorax a fifth wider than 

 long, the sides feebly converging and scarcely arcuate, gradually broadly 

 rounding anteriad; apex half as wide as the base; punctures moderate, 

 subcontiguous laterally, moderately separated and not quite so large medially, 

 without smooth line; scutellum small, free, rounded; elytra evenly oval, a 

 fourth longer than wide, slightly wider than the prothorax and two-thirds 

 longer; grooves moderate, crenulately punctate basally, not much coarser 

 but with the surface more opaque distally; intervals with rather strong and 

 close-set punctures in single series, but sometimes smaller and more confused 

 on the second or third basally; pygidium small, not very convex; bifurcating 

 prominence of the prosternum in high relief and conspicuous, the posterior 

 lobe broadly sinuato-truncate. Length 2.5 mm.; width 1.1-1.12 mm. 

 Brazil (Chapada). September and October. Two specimens. . . sospes n. sp. 



Body somewhat more briefly oval and with larger prothorax, convex, deep black; 

 beak (cf) nearly similar, rugosely and densely punctate, smoother apically, 

 a little more arcuate and four-fifths as long as the prothorax; antennae 

 evidently beyond the middle; prothorax a fifth wider than long, in outline 

 and sculpture nearly as in the preceding, the punctures just visibly coarser; 

 scutellum somewhat larger, not quite so free, transversely oval and with 

 several punctures; elytra nearly as in the preceding in outline and sculpture, 

 but rather more obtusely oval, only about one-half longer than the prothorax, 

 all the intervals with single series of somewhat coarse punctures; pygidium 



