318 Memoirs on the Coleoptera 



half the mass. The prosternum is abruptly canalate, glabrous, the 

 canal extending between the coxae — separated by nearly their own 

 width — and apparently serves to partially receive the beak, when 

 closely retracted. The legs are normal, the narrow femora feebly 

 bent distally and the tibia? straight, but the claw-joint of the tarsi 

 is unusually slender, the claws very small, slender and apparently 

 connate. The elongate prothorax is not in the least tubulate at 

 apex, the basal margin strongly beaded, and broadly feebly bi- 

 sinuate, the scutellum free, rather wider than long, smooth, flat 

 and very feebly obtrapezoidal and the elytra have deep and moder- 

 ate, punctulate striae. There are two species at hand as follows: 



Body very elongate and convex, suboval, black and polished, the legs deep black; 

 surface glabrous above, the strong sternal punctures each with a slender 

 whitish squamule, close on the met-episterna, the abdomen glabrous, ex- 

 cepting the last segment; beak (cf) smooth, punctate and squamulose at 

 base, very feebly arcuate and not three-fourths as long as the prothorax, 

 which is fully a fifth longer than wide, strongly, subcylindrically convex, 

 longitudinally a little more convex basally, as seen in lateral profile; sides 

 feebly converging and scarcely arcuate from base to apex, the latter arcuato- 

 truncate and three-fourths as wide as the base; punctures very fine and 

 remote; elytra two and a fourth times as long as wide, very elongate-suboval, 

 as wide as the prothorax and very nearly twice as long, the humeri scarcely 

 evident; striae fine but deep, gradually rather coarse and more punctate 

 basally, the intervals smooth, wholly impunctate; male abdomen finely, 

 sparsely punctate basally, then smooth to the fifth segment, which has a 

 large median impression, which is clothed with close fine erect fuscous 

 pubescence. Length 3.3 mm.; width 0.95 mm. Brazil (Chapada — forest). 

 November. One specimen sparsa n. sp. 



Body smaller and still narrower, shining, dark testaceous in color, the still longer 

 and more slender legs paler, rufous; surface glabrous, with a very few small 

 sternal squamules, the met-episterna not squamulose; head missing in the 

 type; prothorax much shorter than in the preceding, only slightly longer 

 than wide, otherwise nearly similar, except that the punctures are com- 

 paratively coarse and separated only from two to three times their diameters; 

 scutellum a little smaller; elytra very elongate-oval, not quite two and one- 

 half times as long as wide, evidently a little wider than the prothorax and 

 two and one-half times as long; striae nearly similar but more strongly 

 punctured, especially on the flanks, relatively not so much coarser toward 

 base; intervals nearly similar but much narrower; abdomen in the type 

 smooth and polished, but sparsely punctate basally, the fifth segment smooth 

 and unmodified. Length 2.7 mm.; width 0.8 mm. Brazil (Chapada) 

 March. One example inaequalis n. sp. 



The unmodified fifth ventral in the type of incequalis seems to 

 indicate the female; this segment is only a little longer than the 

 fourth. In the male type of sparsa, however, the distinctly modified 

 fifth segment is almost as long as the two preceding, but there are 

 no basal abdominal sexual characters or any notable modification 

 of the prosternum. 



