Brazilian Barinje 263 



deep and abrupt, strong but rapidly becoming obsolete at the basal margin; 

 male abdomen almost wholly unmodified, the prosternal spines oblique, 

 slightly curved, only slightly compressed and broader basally and black as 

 usual, as long as the prothorax in the type, the pronotum, as viewed in 

 profile, strongly convex behind the apical constriction. Length 4.0-4.5 mm.; 

 width 2.25-2.55 mm. Brazil (Chapada). November. A single pair. 



inornatus n. sp. 



Ill — Form rather stout, rhombic-suboval, shining, deep black, the pronotum 

 smooth and glabrous, the elytra finely, sparsely, rugulosely punctate through- 

 out; intervals 1-6 with narrow close fulvous scales in about basal fourth, 

 2, 4 and 6, and in less degree 3 and 5, also with similar scales, in lines about 

 a fourth the length just behind the middle, the rest of the surface with very 

 fine sparse blackish hair-like squamules; under surface strongly, closely 

 punctate, each puncture with a minute whitish squamule, the inferior thoracic 

 flanks with smaller punctures and longitudinally wavy rugiform lines; beak 

 strongly compressed basally, the flattened sides punctured above and fur- 

 rowed beneath, with smooth interstices, strongly arcuate, more so basally, 

 especially in the female, two-thirds as long as the body, gradually tapering 

 distally ; antennae dark rufous, slightly beyond ( o 71 ) or behind ( 9 ) the middle, 

 the first funicular joint as long as the next four and fully as long as the 

 narrow oval club; prothorax a fourth or fifth wider than long, the subevenly 

 arcuate sides not quite parallel basally; tubulation and head much wider in 

 the female and almost half as wide as the base; surface with the minute 

 punctures distinct laterally; groove along the basal margin coarse and deep; 

 scutellum obtrapezoidal, smooth; elytra parabolic, a fourth longer than 

 wide, with the usual rather prominent humeri, less than twice as long as 

 the prothorax; grooves deep to the base ( 9 ), becoming obsolete near base 

 (cf); abdomen (o 71 ) with a simple impression along the middle basally, the 

 prosternal spines three-fourths as long as the prothorax in examples at hand, 

 the anterior tibiae fimbriate within; canal abrupt, nude, alutaceous and 

 deep. Length (2 cf, 4 9) 5-5-5-8 mm.; width 2.85-3.1 mm. Brazil 

 (Rio de Janeiro). October and November bifasciatus n. sp. 



Form shorter, the size much smaller; coloration, lustre and sculpture throughout 

 similar, except that the elytra have the long narrow fulvous scales rather 

 dense throughout, wanting at the sides — more broadly at basal third — and 

 unevenly at the apex; beak (cf) similar but with the compressed sides 

 strongly punctate throughout, the submedial and rufous antennae with the 

 first funicular joint rather longer than the next four and slightly longer than 

 the club; prothorax a fourth wider than long, the arcuate sides becoming 

 more parallel basally, the tubulation similarly well constricted; eroded line 

 along the base and small obtuse lobe similar; scutellum similar, very smooth; 

 elytra nearly similar but somewhat more strongly rounded at tip, the grooves 

 relatively coarser, conspicuous and deep to the basal margin in the male, 

 which has the abdomen nearly as in bifasciatus, the prosternal spines vestigial 

 and in the form of very small angular tubercles in the type, the very long 

 inner fringe of the anterior tibiae similarly not quite attaining the base. 

 Length 4.3 mm.; width 2.3 mm. Brazil (Rio de Janeiro). November. One 

 specimen semitectus n. sp. 



Form narrower, subrhombic-oval, shining, black, the sculpture above and beneath 

 nearly as in the two preceding; elytra with only a very few remotely scattered 

 fine yellowish hair-like squamules at base and, behind the middle, three or 

 four scales on the second and a short loose line on the fourth interval; beak 

 ( 0") nearly as in the preceding, the rufous antenna? almost similar; prothorax 

 similar but shorter, nearly a third wider than long, the tubulation a little 

 broader and not so distinctly sinuate medially as in semitectus; base and 



