Brazilian Barinve 277 



development, to straight, with a very small subbasal nick in each. 

 The antennae are moderate, with abrupt oval club, having a moder- 

 ate basal segment, the first funicular joint as long as the next three. 

 The prosternum is nearly flat, somewhat fossate anteriorly, moder- 

 ately separating the coxae and wholly unarmed in the male. The 

 basal thoracic lobe is small and rounded, and the scutellum small, 

 quadrate, squamulose and free; the prothorax is scarcely tubulate 

 at apex. The species at hand are as follows: 



Body more elongate-oval and generally larger in size, the mandibles each with 

 two strong nicks 2 



Body smaller, more abbreviated as a rule and still more oval, the mandibles each 

 with a small feeble nick near the base, the right with two small nicks in 

 persimilis 5 



2 — -Body more attentuated behind, the elytral squamules rather broadly confused 

 on almost all the intervals 3 



Body more oblong-oval, somewhat less attenuate behind, the elytral squamules 

 narrowly confused or forming single interstitial lines 4 



3 — Form almost evenly oval, the humeri but slightly prominent, black, the legs 

 not paler; vestiture above in the form of short and narrow but very distinct 

 pale fulvous scales, evenly distributed, the scutellum with dense and whiter 

 scales, the under surface with close but not very dense whitish scales; beak 

 almost similar in the sexes, nearly three-fourths as long as the elytra, shining 

 and finely, sparsely punctate, more compressed basally in the male, nude 

 except at the extreme base, where there are a few squamules; antennae very 

 obscure rufous, submedial (9), far beyond (cf); prothorax a third wider 

 than long, the sides subevenly and strongly arcuate, becoming parallel 

 basally; punctures strong and close but not crowded, without smooth median 

 line; elytra a third longer than wide, a little wider than the prothorax and 

 fully twice as long, the oblique sides broadly, evenly and feebly arcuate, 

 the apex narrowly but obtusely rounded; grooves somewhat coarse and 

 deep, intervals with rather strong and loose, confused punctures, alternating 

 slightly in width; male abdomen basally scarcely more than flattened 

 medially and not at all differently clothed, the fifth segment, however, with 

 a large, subimpressed and nearly glabrous median area. Length 3.0-3.2 

 mm.; width 1. 3-1. 35 mm. Brazil (Santarem). Four specimens. 



naso n. sp. 



Form rather more oblong-oval, with still feebler humeri; vestiture nearly white 

 throughout, consisting of narrow and well separated scales on the pronotum, 

 on the elytra very dense on some of the intervals, especially the sutural, 

 still denser on the scutellum; rather large and dense beneath; color black, 

 the legs not paler; beak (o") unusually short and thick, compressed, feebly 

 arcuate, closely sculptured and barely longer than -the prothorax, which is 

 a third wider than long, the sides but feebly convergent and slightly arcuate, 

 rounding apically and oblique to the truncate apex, which is half as wide as 

 the base; punctures strong and close; elytra not quite a third longer than 

 wide, just visibly wider than the prothorax and four-fifths longer, the sides 

 only feebly oblique and broadly arcuate, merging gradually into the some- 

 what obtusely rounded apex; grooves coarse, the intervals varying much 

 in width, the narrower with only a single line of scales, especially toward 

 apex; abdomen in the male wholly devoid of sexual modification, the scales 

 extremely dense throughout the two basal segments, the antennae beyond 

 the middle of the beak seeming at least to indicate the male; fifth segment 



