476 Memoirs on the Coleoptera 



preceding joints, its first segment fully half the mass, polished and 

 glabrous. Prosternum nearly flat, moderately separating the coxae, 

 the posterior lobe wanting, being represented by a broad and feeble 

 arcuation of the hind margin. Prothorax strongly tubulate, the 

 basal lobe somewhat prominent, rounded, the scutellum very free 

 posteriorly but close-set laterally, transversely suboval, the elytra 

 deeply grooved, with two small feeble undulations near the third 

 interval, the pygidium small, moderately convex. The type is 

 as follows: 



Glyptobaridia hystrix n. sp. — Body oblong-oval, convex and nearly opaque, 

 black, the legs not paler; pronotum with the setae dark, very coarse and sparse, 

 those of the elytra pale brown, long and less coarse, mingled with parallel paler 

 squamules, which are semi-erect and more abundant apically; under surface 

 with sparse and slender, whitish squamules; beak ( 9 ) feebly arcuate, as long as 

 the prothorax, shining, coarsely punctate and squamo-setulose basally, very 

 densely just beyond the sulcus, more finely, sparsely punctured and glabrous 

 distally; antennae slender, piceous, the club rather abrupt; prothorax not quite 

 a third wider than long, the sides subevenly arcuate from base to the tubulation, 

 which is half as wide as the base ; punctures very coarse but somewhat shallow 

 and opaque, densely crowded throughout, with a fine uneven subprominent and 

 polished, impunctate median line; elytra scarcely a fourth longer than wide, 

 parallel, very obtusely rounded at apex and with very feeble humeral swellings, 

 slightly wider than the prothorax and three-fourths longer; grooves moderate, a 

 third or fourth as wide as the intervals, opaquely, contiguously and shallowly 

 punctate along the bottom, the intervals with coarse and very shallow, confused 

 subcontiguous punctures; pygidium densely hispido-squamose apically; under 

 surface coarsely, densely and shallowly punctate and opaque. Length 4.4 mm.; 

 width 2.15 mm. Brazil (Chapada). December. One specimen. 



The first ventral suture is fine but entire, and is strongly arcuate 

 medially. 



Baris Germ. 



This is a very large genus, the structural characters of which are 

 well known. The Brazilian species are rather numerous and smaller, 

 on the whole, than those of more northern regions, agreeing per- 

 fectly with them however in general structure and habitus. Those 

 that I now have before me may be described as follows: 



Elytral grooves attaining the basal margin; squamiform setae evenly distributed 



when present. [Subgen. Baris in sp.] 2 



Elytral grooves not attaining the base; elytral squamules fasciiform in arrange- 

 ment, the surface also undulate and herissate with erect setae. [Subgen. 



Baridiaspis nov. ] II 



2 — Legs rufous 3 



Legs black or piceous-black 8 



3 — Body in the neighborhood of 3 mm. in length 4 



Body notably small or minute 5 



4 — Form elongate-oval, convex, shining and almost completely glabrous, rufo- 

 piceous in color, with feeble subaeneous lustre, the legs and elytra brighter 



