Brazilian Barinve 139 



third, the first two funicular joints much elongated and subequal, each as 

 long as 3-5 combined, the club small, regular, oval, as long as the three 

 preceding joints; prothorax one-half wider than long, campanulate, the 

 evenly arcuate sides gradually parallel at base; tubulation very short, 

 gradual and subobsolete; surface much flattened, nearly smooth, alutaceous, 

 with some strong scattered punctures anteriorly; basal lobe nearly smooth, 

 broadly and very evenly arcuate, the lateral impressions oblique and deep; 

 scutellum smooth, twice as wide as long, parallel, sinuato-truncate at base, 

 the feebly angulate apex aciculate medially; elytra a third longer than wide, 

 much wider than the prothorax and twice as long, the oblique sides nearly 

 straight; apex rather sharply rounded, the humeri prominent, somewhat 

 narrowly rounded; striae fine but distinct, with very distinct small punctures, 

 2 strongly, 3 and 4 feebly, dilated at base, the exaration at apex very coarse, 

 deep and confused; two lateral intervals convex; metasternum impunctate 

 medially, with a dense patch of white squamules at each side; abdomen 

 convex, almost impunctate, feebly impressed along the middle basally in 

 the female. Length 8.8 mm.; width 5.0 mm. Brazil (Santarem). One 



specimen longulus n. sp. 



Form less elongate and more convex, subrhombic; beak (d 1 ) rather more slender 

 and much longer, very nearly as long as the elytra, feebly arcuate, rapidly 

 more so at base, minutely, sparsely punctulate, strongly and closely so on 

 the compressed sides basally; antennae at two-fifths, long and slender, piceo- 

 rufous, the first funicular joint one-half longer than the second, which is 

 subequal to the next two, the third nearly one-half longer than wide, the 

 club small, narrow, rapidly pointed at apex and as long as the preceding 

 three joints; prothorax three-fifths wider than long, the sides strongly 

 arcuate, widest at basal two-fifths, the less arcuate anterior obliquity ending 

 at the long and well developed tubulation; surface convex, very minutely, 

 remotely punctulate, with numerous strong punctures anteriad; basal lobe 

 evenly and less broadly arcuate, with an irregular line of strong punctures, 

 the lateral impressions subsimilar; scutellum nearly similar; elytra but little 

 longer than wide, much wider than the prothorax, but only three-fourths 

 longer, the oblique sides nearly straight, gradually becoming strongly rounded 

 behind, the prominent humeri somewhat narrowly rounded; striae extremely 

 fine and indistinct, subobsolete, the punctulation scarcely traceable, but 

 distinct as usual in the more impressed seventh and eighth striae, 2-4 abruptly 

 dilated at base; apical exaration coarse, deep and confused; subapical 

 prominence not so conspicuous; under surface nearly similar, the dense 

 prosternal squamules tawny in color, the dense whitish area at the sides of 

 the metasternum similarly margined externally by a raised smooth bead; 

 base of the abdomen broadly flat and subimpunctate in the type. Length 

 7.8 mm.; width 4.7 mm. Brazil (Rio de Janeiro). November. One 

 specimen atratus n. sp. 



In no one of the species at hand could the pronotum be con- 

 sidered to have even a remote suspicion of gibbosity, and the type 

 of the genus — Centrinus tumidus Boh. — from Sao Paulo, cannot 

 therefore be included in my material. Centrinus parellinus, or 

 inter stitialis, of Boheman, which also belong to this genus, may 

 possibly be represented above, however, but in cobaltinus, splendens 

 and hyacinthus , which are the only ones to be considered in this 

 respect, the interstitial punctures never become strong enough to 

 be noticed, except perhaps in the last, and in that, the antennal 



