486 Memoirs on the Coleoptera 



carina and somewhat oblique. The legs are normal and moderate. 

 There are five species of this genus now known to me as follows: 



Body uniformly ferruginous in color above 2 



Body above bicolored, the prothorax rufous, the elytra metallic blue or green. . .3 



2 — Form elongate, parallel, convex and shining, glabrous, the head, beak, under 

 surface and legs deep black; beak thick, very strongly arcuate, not at all 

 compressed and not quite as long as the prothorax; antennae shining, black- 

 ish; prothorax a third wider than long, the sides feebly converging and 

 nearly straight, rounding anteriorly to the gradual tubulation; punctures 

 strong, remote, laterally coarse and well separated, the median smooth line 

 broad and entire; elytra three-fifths longer than wide, evidently wider than 

 the prothorax and two and one-half times as long, parallel, obtusely rounded 

 at apex, distinctly undulated; grooves moderate, basally coarser, more im- 

 pressed and punctate, coarse and deep apically; intervals with single loose 

 series of very minute punctures. Length 8.0-9.0 mm.; width 3.4-3.75 

 mm. Brazil (St. Catharina and other localities). Six specimens. [Barid- 

 ius carnifex Boh.] carnifex Boh. 



Form much less elongate, oblong-suboval, convex, moderately shining, glabrous, 

 the beak, legs and entire under surface deep black; beak straight beneath 

 in profile, broadly arcuate above, thick, closely, not very coarsely punctate 

 and very short, not three-fourths as long as the prothorax; antennae nearly 

 black; prothorax a fourth to nearly third wider than long, the sides con- 

 verging and very feebly arcuate, rounding anteriorly to the scarcely at all 

 tubulate apex, which is much less than half as wide as the base; punctures 

 rather small, sparse, becoming notably coarse and subcontiguous at the 

 sides, the median smooth line not well defined; elytra oblong, not one-half 

 longer than wide, a fourth or fifth wider than the prothorax and distinctly 

 more than twice as long; grooves strong, a little coarser basally and much 

 coarser distally; intervals with single series of moderate, deep and somewhat 

 close-set punctures. Length 5.75-6.2 mm.; width 2.9-3.0 mm. Brazil 

 (Theresopolis). Two specimens. [Baridius exaratus Boh.]. . . exarata Boh. 



3 — Body throughout above and beneath uniform pale rufous, excepting the elytra, 

 which are black, with strong violet-blue lustre. Glabrous and shining, the 

 beak rather thick, cylindric, strongly arcuate, somewhat strongly but loosely 

 punctate and three-fourths as long as the prothorax; antennae piceous, the 

 club only as long as the three preceding joints; prothorax barely a fifth 

 wider than long, the sides converging and straight, rapidly rounding in apical 

 fourth, the tubulation subobsolete; punctures rather small but deep, remote, 

 a little coarser but widely separated at the sides, with a distinct smooth 

 median line; scutellum slightly wider than long; elytra nearly one-half 

 longer than wide, distinctly wider than the prothorax and somewhat over 

 twice as long, parallel, obtusely rounded at apex; grooves rather narrow, 

 punctate, coarser basally and slightly coarser apically; intervals with minute 

 sparse punctures, more or less confused in arrangement. Length 7.0 mm.; 

 width 3.2 mm. Paraguay. One specimen. [Baris sanguinicollis Germ.] 



sanguinicollis Germ. 



Body black, with metallic reflection beneath, the prothorax rufous throughout, 

 the elytra dark, metallic 4 



4 — Form oblong, convex, polished and glabrous; beak (cf) very short, straight 

 beneath, arcuate above, strongly, densely punctate and only three-fifths as 

 long as the prothorax, or ( 9 ) strongly, evenly arcuate, cylindric, more finely 

 and loosely punctate and three-fourths as long as the prothorax; antennae 

 piceous, the club smaller and shorter in the female; prothorax fully a fifth 



