Brazilian Baring 149 



oblong and rather free, and the elytra are deeply grooved. The 

 type is the following: 



Tudenia bicolorata n. sp. — Elongate-oval, convex, shining and glabrous, each 

 of the strong punctures of the under surface with a very minute squamule; color 

 deep black, the prothorax bright rufous; beak (o 71 ) evidently shorter than the 

 prothorax, moderately arcuate; prothorax a fourth or fifth wider than long, the 

 sides feebly converging and barely arcuate to somewhat beyond the middle, then 

 rounding to the distinctly and rather closely punctured tubulation, which is 

 nearly half as wide as the base; surface very finely, sparsely punctate, somewhat 

 more evidently toward the sides, also punctate along the basal margin; basal 

 lobe gradually formed, well developed and obtusely cuspidiform; scutellum 

 parallel, longer than wide, impressed along the middle; elytra about one-half 

 longer than wide, much wider than the prothorax and about twice as long, suboval, 

 rather obtusely rounded behind, the humeri somewhat distinctly prominent and 

 rounded; grooves rather coarse and deep, obscurely punctate; intervals flat, 

 with fine, confused and somewhat close-set punctulation; abdomen convex, 

 minutely, sparsely punctulate, with a narrow deep impression basally in the type. 

 Length 3.7 mm.; width 1.85 mm. Brazil (Chapada). October. One specimen. 



The peculiar coloration and rather short, subcompressed beak, 

 are characters distinguishing this species from any of those pre- 

 viously described. 



Thestonia n. gen. 



The body in this genus is almost evenly oval and convex, sparsely, 

 evenly clothed above with very slender pale squamules, a little 

 less slender and denser throughout beneath. The beak is rather 

 thick, compressed and strongly sculptured, sparsely lineato-squam- 

 ulose, and separated from the head by the feeblest sort of impression. 

 The mandibles are arcuate and very strongly and sharply dentate 

 within, but do not seem to widely overlap when closed, they being 

 somewhat prominent. The antennae are medial and rather long. 

 The prosternum is very feebly impressed along the middle, the 

 coxae separated by somewhat less than half of their width, the 

 femora slightly inflated, minutely, loosely punctate and finely 

 squamulose, and the tarsal claws are moderate and straight, but 

 strongly connate through almost half their length. The thoracic 

 apex is not tubulate, and the scutellum is oblong and not in very 

 close contact with the surrounding surfaces, though not widely 

 free. The type is as follows : 



Thestonia sparsa n. sp. — Elongate-oval, convex, black, the upper surface with 

 the feeblest subseneous lustre and rather alutaceous; beak thick, as long as the 

 head and prothorax, feebly arcuate, rather compressed, having coarse, longitu- 

 dinal ridges and moderate punctures, the upper surface subcariniform; antennae 

 piceous, the first funicular joint as long as the next three, the outer joints slightly 

 broadened, the club large, evenly oval, densely pubescent, subevenly segmented 

 by deep sutures and as long as the five preceding joints; prothorax two-fifths 

 wider than long, the sides distinctly converging and very feebly arcuate, becoming 



