Brazilian Baring 489 



rather thick, compressed, finely, closely punctate and as long as the head and 

 prothorax; antennae obscure rufous; prothorax small, as long as wide, the sides 

 parallel and straight to beyond the middle, then oblique and almost straight to 

 the apex, which is two-thirds as wide as the base; punctures fine and sparse, a 

 little coarser, closer and bearing small sparse squamules at the sides; elytra 

 one-half longer than wide, fully two-fifths wider than the prothorax and more 

 than two and one-half times as long, the sides perfectly parallel and straight, 

 circularly rounding in posterior third, the humeri distinct but not at all swollen; 

 grooves fine, even, sharply defined, finely punctate and a fourth or fifth as wide 

 as the intervals, which are virtually smooth. Length 2.8 mm.; width 1.15 mm. 

 Brazil (Rio de Janeiro). 



Of this interesting species I have seen but a single specimen 

 which appears to be the female. 



Attangus n. gen. 



The type of this genus is among the larger Brazilian Barids; the 

 body is polished, glabrous, subparallel in outline and with long 

 arcuate and gradually tapering beak, separated by a very feeble 

 depression of the surface; it is compressed, opaculate and strongly, 

 loosely punctate basally, elsewhere smooth and minutely, remotely 

 punctulate and, toward apex, is slightly flattened. Antennae sub- 

 medial, rather long' and slender, the first funicular joint much 

 elongated, as long as the next four joints, the second as long as the 

 succeeding two and the others transverse, gradually increasing in 

 width, the club somewhat gradual, oblong-ovoidal, densely pubes- 

 cent, as long as the four preceding joints and subequally segmented 

 by the feeble and obscure sutures. Prosternum deeply and sharply 

 canalate, the coxae separated by nearly two-thirds their width, the 

 intercoxal suture post-medial and the posterior lobe long, narrowed 

 basally and broadly sinuate at apex. Prothorax strongly tubulate 

 at apex and with small but prominent, apically obtusely subangulate 

 basal lobe, the scutellum free, moderate, slightly transverse and 

 with angulate apex, the elytra scarcely undulated and with very 

 fine, subobsolete and finely punctulate striae. Propygidium oblique, 

 largely exposed in the male type, opaculate and medially carinulate, 

 the pygidium rather large, vertical, very strongly, evenly convex, 

 polished and finely, sparsely punctate. The legs are well developed, 

 the femora slightly swollen, the tarsi long and slender, with stout 

 and free, diverging claws. The only known species is the following: 



Attangus caudalis n. sp. — Parallel, convex, polished, glabrous and very feebly 

 sculptured, deep black throughout; beak (cf) strongly, evenly arcuate, fully as 

 long as the prothorax; antennas rufo-piceous; prothorax quadrate, as long as 

 wide, the sides parallel and nearly straight, gradually rounding from slightly 

 beyond the middle to the tubulation, which is distinctly less than half as wide as 

 the base; punctures small but distinct, sparse, almost obsolete broadly toward 

 base, well separated at the sides; elytra nearly three-fifths longer than wide, 



