250 Memoirs on the Coleoptera 



gradually, rather obtusely rounding behind, much more than twice as long 

 as the prothorax and slightly wider; grooves very moderate, narrowly 

 parting the vestiture, which is close and evenly confused throughout. Length 

 1.8 mm.; width 0.85 mm. Brazil (Chapada). November. One specimen. 



occulta n. sp. 



Mandibles of the usual form, straight within, the apices not everted 5 



5 — Prothorax much shorter than wide 6 



Prothorax but little shorter than wide 7 



6 — Body oval, the narrow scales above very dense, uniform and ochreous, some 

 of them suberect along the strial intervals, beneath very dense and yellowish- 

 white; integuments blackish, the legs obscure rufous; beak (o 71 ) short and 

 notably thick, feebly arcuate, densely punctured and squamulose almost 

 throughout, and barely longer than the prothorax, or ( 9 ) more slender, 

 slightly tapering, somewhat more arcuate, smoother and glabrous apically, 

 and as long as the head and prothorax; antennae moderate, obscure rufous 

 and medial; prothorax more than a third wider than long, the sides almost 

 straight and not quite parallel to somewhat beyond the middle, there rounding 

 and oblique to the apex, which is half as wide as the base; punctures and 

 scales dense and uniform throughout; scutellum and lobe very densely but 

 not more pallidly squamose; elytra parabolic, nearly a third longer than 

 wide, almost a fifth wider than the prothorax and distinctly more than 

 twice as long; grooves narrowly parting the dense uniform vestiture; abdo- 

 men (o 71 ) feebly impressed toward base medially, but scarcely less squamose. 

 Length 2.0-2.4 mm.; width 1. 0-1.25 mm - Brazil (Chapada). March and 



November. Ten specimens gregalis n. sp. 



Body nearly similar but somewhat more narrowly oval, the narrow squamules 

 above not quite so dense and grayish-white in color, very uniform throughout, 

 white and very dense beneath; integuments black, with dark rufous legs; 

 beak (d") not quite so thick and almost as long as the head and prothorax, 

 nearly similar in sculpture and in the very feeble arcuation, or ( 9 ) as thick 

 as in the male, but a little more tapering, smoother apically, more arcuate 

 and fully as long as the head and prothorax; antennae similar; prothorax 

 a fourth to third wider than long, in outline almost similar, the apex not 

 quite half as wide as the base; basal lobe and scutellum very densely squa- 

 mose; elytra elliptic, but somewhat more narrowly rounded at tip, fully a 

 third (cf) to less ( 9) longer than wide, evidently more than twice as long 

 as the prothorax; grooves slightly coarser than in the preceding, the inter- 

 stitial vestiture nearly similar in structure; male ventral characters nearly 

 similar. Length 2.0-2.25 mm.; width 0.9-1. 18 mm. Brazil (Chapada). 



June and November. Three specimens adolescens n. sp. 



7 — Form elongate-oval, convex, the color black, with dark rufous legs; scales 

 above rather large and broad but parallel, narrowly separated and uniform 

 ochreous, dense and whiter beneath; scutellum free, densely but not more 

 pallidly squamose; beak (cf) short, thick, feebly arcuate, strongly, longi- 

 tudinally sculptured and punctate and not as long as the head and prothorax, 

 or ( 9 ) longer, less thick and smoother, but similarly arcuate, as long as the 

 head and prothorax, squamose basally as in the male; antennae submedial, 

 somewhat more basal (9), short, the scape almost attaining the eye, the 

 first funicular joint as long as the next three; prothorax only a fourth or 

 fifth wider than long, densely punctate, the sides feebly converging and 

 slightly arcuate to beyond the middle, then more rounding and oblique to 

 the apex; elytra oval, rather narrowly rounded at tip, more than a fourth 

 longer than wide, much less than twice as long as the prothorax, the suberect 

 submedial scales among the close decumbent ones along the intervals con- 

 spicuous; striae very finely parting the vestiture; male abdomen feebly 



