Brazilian Baring 305 



sparser than in any other species, very inconspicuous, sparse and only a 

 little larger beneath and within the coarse sternal punctures, barely more 

 evident on the met-episterna; beak (o 71 ) feebly arcuate, cylindric, finely 

 punctulate, not very stout and almost as long as the prothorax, or ( 9 ) yery 

 little more slender, smoother and about as long as the head and prothorax; 

 antenna; slender, blackish, medial (9), at four-sevenths (c? 1 ); prothorax a 

 fourth wider than long, the parallel and scarcely arcuate sides somewhat 

 gradually rounding well beyond the middle, the apex fully half as wide as 

 the base (cf), much more (9); punctures strong, separated by their own 

 widths, with a narrow subtumid smooth median line; scutellum not elongate, 

 strongly obtrapezoidal and concave; elytra fully one-half longer than wide, 

 semicircularly rounded behind, slightly wider than the prothorax and four- 

 fifths longer; grooves somewhat less coarse and deep than in the preceding, 

 the interstrial sculpture fine, sparse and confused; male abdomen nearly 

 similar but not so closely punctate; prosternal spines porrect and arcuate, 

 a third to two-fifths as long as the prothorax in the three males at hand. 

 Length 4.6-4.75 mm.; width 1. 85-1. 95 mm. Brazil (Chapada). June and 

 November. Four specimens regestus n. sp. 



The species of this genus are among the more conspicuous of the 

 tribe Limnobarini, though not so markedly so as the following. 



Demoda n. gen. 



This genus is founded upon a relatively large stout parallel 

 species, of very striking appearance in the present group, due to 

 the peculiar arrangement of the vestiture. The beak is thick, 

 perfectly cylindric, of moderate length and not separated from the 

 head by any kind of an impression. The antennae are slender, 

 slightly ultra-median in the male, the scrobes moderately oblique, 

 the glabrous funicle with stiff bristling setae and not much enlarged 

 distally, the first joint rather longer than the next two, which are 

 short, the club large, abrupt, oval, about as long as the five pre- 

 ceding joints, with its basal segment more than half the mass. 

 The male prosternum has two short curved spines, separated by a 

 small oval perforation, the coxae very moderately separated. The 

 legs are simple but not slender, the tarsi broad, with transverse 

 second joint and dilated and bilobed third, the fourth normal and 

 the claws short, thick and divergent. The prothorax is not tubulate 

 at apex, the base broadly arcuate, except at the sides, the scutellum 

 quadrate, dull, free, with a transverse submedian canaliculation — an 

 almost unique peculiarity — and the elytra are very moderately 

 grooved. The type is as follows: 



Demoda vittata n. sp. — Broadly oblong, parallel, moderately convex, rather 

 shining and piceous in color throughout; scales above pale yellowish, long and 

 linear but large and conspicuous, dense throughout the periphery of the pronotum, 

 also extremely dense on intervals 3-7-9 of the elytra, the three vittae uniting 

 near the apex, that of the seventh not attaining the base, the fifth is also clothed, 

 but sparsely, with finer squamules, becoming dense at base, the other intervals 

 with a few very fine scattered squamules; under surface with shorter and broader, 

 T. L. Casey, Mem. Col. X, Oct. 1922. 



