n6 Memoirs on the Coleoptera 



width 3.35 mm. Brazil. A single specimen, sent me without further 

 indication of locality by Desbrochers des Loges agrestis n. sp. 



Sides of the prothorax rather strongly and evenly arcuate throughout, gradually 

 becoming subparallel basally, but without trace of rounded angulation; beak 

 slender, moderately arcuate, fully as long as the elytra, finely punctate, 

 strongly but loosely so basally; antennae submedial, slender, piceous, the 

 third funicular joint much more than twice as long as wide; prothorax 

 large, somewhat more than one-half wider than long, the sides subevenly 

 and strongly arcuate, gradually becoming subparallel basally; tubulation 

 distinctly but not closely punctate, long, three-sevenths as wide as the 

 base, the basal lobe rather short, gradual, with broadly sinuate apex, also 

 with very feeble punctulation; scutellum transversely subquadrate, nearly 

 fiat and smooth; elytra triangular, very little longer than wide, three- 

 fourths longer than the prothorax and only a little more than a sixth wider, 

 the sides broadly arcuate, the apex moderately narrow and rounded; grooves 

 not dilated at base; anterior femora very feebly bispiculate; inferior thoracic 

 flanks distinctly, sparsely punctate; femora rather coarsely but loosely 

 punctate. Length 5.75 mm.; width 3.6 mm. Brazil (Rio de Janeiro). 

 October. One specimen carbo n. sp. 



12 — Body subrhombic, smooth and polished as usual; beak long, slender, moder- 

 ately and evenly arcuate, fully as long as the elytra, finely, sparsely punctate, 

 more distinctly toward base; antennae long and very slender, piceous, the 

 fourth joint twice as long as wide, the third much more, the first and second 

 very elongate; prothorax large, a little more than one-half wider than long, 

 the sides strongly arcuate, gradually subparallel in nearly basal half, finely, 

 sparsely punctate; tubulation two-fifths as wide as the base, the basal lobe 

 broad, feebly punctulate, subtruncate at apex; scutellum nearly flat, trans- 

 versely quadrate; elytra slightly longer than wide, triangular, with feebly 

 arcuate sides and moderately narrow rounded apex, almost four-fifths longer 

 than the prothorax, but barely a sixth wider, the humeri only moderately 

 prominent; grooves moderate, not dilated at base; femora coarsely, rather 

 closely punctate, the anterior only very minutely spiculate; metasternum 

 with the median stria at the bottom of a broad impression posteriad. Length 

 6.2 mm.; width 3.75 mm. Brazil (Rio de Janeiro). October. One speci- 

 men tenuicornis n. sp. 



13 — Prosternum almost glabrous and with rather wide deep canal; body larger 

 in size 14 



Prosternum with plentiful pale yellowish or whitish squamules and a narrow 

 deep glabrous canal; body much smaller; antennse more slender, with the 

 elongate-oval club larger and more abrupt 15 



14 — Form stout, rhombic-suboval, smooth; beak slender, evenly arcuate, three- 

 fourths as long as the elytra, rather closely punctured, coarsely and rugosely 

 so basally; antennae rather long but thick, with relatively slender club, the 

 third joint less than one-half longer than wide; prothorax somewhat less 

 than one-half wider than long, the strongly and evenly arcuate sides becoming 

 gradually almost parallel basally, the constriction with rather strong punc- 

 tures; basal lobe broadly truncate, with distinct lateral impressions at the 

 thoracic base, and a few punctures along the margin; scutellum moderate, 

 transverse, wider at apex than at base; elytra barely longer than wide, 

 three-fourths longer than the prothorax, parabolic, with prominent humeri 

 and feebly undulated lateral part of the disk; grooves deep and strong 

 throughout, evidently punctate laterally, 2-4 slightly dilated at base; under 

 surface remotely punctate, the metasternum with small oval and broadly 

 impressed central fossa; first ventral longer than the next three combined, 

 broadly, feebly impressed and finely, remotely punctulate, the first suture 



