Brazilian Barin^e 251 



impressed medially toward base. Length 2.5-2.85 mm.; width 1. 2-1.35 

 mm. Brazil (Chapada — campo). October. Two specimens. . .lenta n. sp. 

 Form narrower, smaller in size, the legs feebly rufescent; dense, uniform and 

 narrower parallel scales above deep ochreous-yellow, the scutellum not so 

 free, it and the lobe still more densely but not more pallidly squamose; 

 dense scales beneath whiter, the ochreous pronotal covering descending 

 rather far down the inferior flanks; beak (o 71 ) thick and feebly arcuate, 

 nearly as in the preceding but less coarsely sculptured and only as long as 

 the prothorax, the antennae similar, rufous; prothorax very nearly as long 

 as wide, the sides and very dense punctuation nearly as in the preceding; 

 elytra similarly oval, a fourth longer than wide, less than twice as long as 

 the prothorax, the striation similar, but the inclined scales in single line 

 along the densely squamose intervals are finer and very much less noticeable; 

 male abdomen similarly feebly impressed medially toward base, but scarcely 

 less squamose. Length 2.35 mm.; width 1.15 mm. Brazil (Chapada — 

 campo). October. One specimen ochreata n. sp. 



The two sections of the sixth group differ markedly in form and 

 size, also in prosternal structure and vestiture, those of the first 

 section resemble Brachygerceus laxatus in habitus, and all three of 

 that genus in prosternal structure, there being no evident transverse 

 constriction, and they also have the dense scales radiating from a 

 central point. The sexual differences throughout the body in the 

 IcEvicollis section are very remarkable, and the male prosternal 

 spines are quite different from anything known among the North 

 American representatives of the genus. It is not at all improbable 

 that aiiricollis may have been previously described, as it is a con- 

 spicuous small species from a rather well known faunal region. 

 Occulta has the mandibles slender, with the acute apices everted, 

 but they are not falciform as in Microbaridia. Australis belongs 

 to the same section as the Central American lineella Lee. 



Microforandia n. gen. 



The body in this genus is small, feebly subrhombic-oval, densely 

 dull and with sparse short hair-like squamules, the beak rather 

 short, thick and dull, the mandibles simple and non-decussate and 

 the antennae at the middle or slightly beyond, with the first funicular 

 joint as long as the next two, the club oval and of peculiar structure, 

 the basal segment being two-thirds to almost three-fourths the 

 mass. The prosternum has a broad shallow impression along the 

 middle, limited at the sides by obtuse ridges, and the sculpture and 

 scanty hair-like vestiture extends unmodified over its entire surface; 

 it is unarmed in the male. . The legs are moderate in length, the 

 femora uninfiated and unarmed, and the free divergent tarsal claws 

 are notably long. The type is the following: 



Microforandia uniformis n. sp. — -Opaque and pale brownish-testaceous in color 

 throughout, the somewhat sparse vestiture consisting of short suberect hairs, 

 uniformly distributed, transverse on the pronotum and forming a slightly denser 



