Brazilian Baring 419 



Humeral prominence angulate at apex, the angle at most only slightly blunt. . .6 



5 — Form broadly subrhombic, convex, deep violaceous-blue throughout, the legs 

 concolorous; beak (9) thick, minutely, sparsely punctate, as long as the 

 prothorax, the antennae at four-sevenths, the funicle smooth, unimpressed, 

 very gradually increasing in width, the first joint twice as long as wide, the 

 seventh twice as wide as long and not quite as wide as the club, which is 

 gradually acutely conical and barely as long as the three preceding joints, 

 densely and pallidly pubescent throughout, the sutures straight, its four 

 segments equal in length; prothorax very convex in profile, broad, three- 

 fourths wider than long, the sides slightly converging and feebly arcuate, 

 gradually broadly rounding and strongly convergent beyond the middle, the 

 abrupt tubulation not three-sevenths as wide as the base; punctures infini- 

 tesimal and very remote throughout, the scutellum with similar punctules; 

 elytra as long as wide, the sides behind the large humeral prominences feebly 

 oblique and broadly arcuate, a fourth wider than the prothorax and three- 

 fourths longer, broadly and individually rounded at apex; striae extremely 

 fine and feeble, with very evident punctures, coarser and more impressed at 

 the sides and apex; intervals with remote infinitesimal punctures; pygidium 

 vertical, loosely punctate, nearly flat, almost twice as wide as long and 

 angulate at the sides; under surface extremely minutely and remotely 

 punctate; fifth ventral deflexed at apex. Length 8.6 mm.; width 6.o mm. 

 Brazil (Rio Grande do Sul). One specimen cyaneus Gyll. 



Form more elongate, rhombic-oval, polished, deep blue, with strong violaceous 

 lustre; beak (c?) longer, exceeding the head and prothorax, minutely, sparsely 

 punctate, the compressed sides concave medially from base to antennas, 

 which are at three-fifths, nearly as in the preceding in form and but little 

 thicker, the joints foveate on one side; prothorax very different, only one- 

 half wider than long, the sides subevenly and strongly arcuate, becoming 

 straighter and but feebly divergent basally, the tubulation two-fifths as 

 wide as the base; punctuation sparse and infinitesimal; basal lobe with 

 more evident lateral basal impressions; scutellum much less transverse; 

 elytra nearly similar but not quite so wide, and with the punctures of the 

 very feeble striae still smaller and less evident; pygidium vertical, larger, 

 more sparsely punctate and much less transverse; abdomen broadly and 

 feebly impressed at base, the fifth segment with a moderate and rather shallow 

 fovea, slightly wider than long and densely clothed with brown hairs, the 

 apex even, not produced medially. Length 9.0 mm.; width 6.1 mm. Brazil. 

 A single male specimen, from an unrecorded locality violaceus n. sp. 



6 — Body not quite so large or broad as in cyaneus, similar throughout in color, 

 lustre and sculpture; beak (c?) as long as the head and prothorax, more 

 minutely, remotely punctulate, feebly concave along the compressed sides, 

 the antennae almost similar; prothorax four-sevenths wider than long, the 

 sides strongly arcuate, becoming straighter and nearly parallel basally; 

 punctures similar; basal lobe with its apex more narrowly rounded and 

 feebly bilobed; scutellum much less transverse than in cyaneus, and more 

 rounded, its apex not so prominently acute; elytra nearly similar but not 

 quite so wide, the discal striae still finer and barely traceable, with more 

 minute punctulation; pygidium vertical, finely, sparsely punctate, not quite 

 twice as wide as long and angulate at the sides; abdomen (o 71 ) with a large 

 and feebly concave basal impression, the fifth ventral with a fovea, which is 

 more transverse than in the preceding, nearly twice as wide as long and 

 similarly densely pubescent; anterior legs much longer than the others. 

 Length 8.5 mm.; width 6.0 mm. Brazil. A single male, received from 

 Desbrochers des Loges without further indication of locality. 



humeralis n. sp. 



