Brazilian Baring 343 



with the plaque subquadrate and sparsely punctate, the apical spines slender, 

 porrect and three-fourths as long as the femoral thickness, the anterior tibiae 

 fringed in nearly apical half and the inner fringe of the tarsi long and loose. 

 Length 5.75 mm.; width 2.75 mm. Brazil (Santarem). One specimen. 



rhomboidea n. sp. 



No note relating to the life habits of the above species was 

 recorded by Mr. Smith. 



Pycnotheantis n. gen. 



While subsimilar in bodily form, sculpture and polished integu- 

 ments to the two preceding genera, Pycnotheantis differs in many 

 points of structure. The body is much larger and stouter than in 

 Theantis, though nearly similar in form, the integuments sub- 

 glabrous. The beak is long and regularly arcuate but somewhat 

 thicker and is deeply sculptured in longitudinal furrows in an 

 entirely different manner, and its inferior outline is feebly crenulate 

 and with a loose fringe of short thick setae, a character faintly 

 recalling Pseudomadarus; the mandibles are decussate. The an- 

 tennas are near basal third, the first funicular joint as long as the 

 next two, the second also elongate, the outer joints gradually 

 thicker, the seventh larger, somewhat wider than long; the club is 

 small, oval, pointed, but little longer than the two preceding joints, 

 with its basal segment rather more than half the mass and less 

 pubescent at base. The anterior coxae are separated by not quite 

 twice their width and, in the male, the prosternum has two strong 

 and straight, suberect, thick and attenuate spines adjoining the 

 coxae and mutually separated by a broad deep channel, abruptly 

 ending at the transverse intercoxal suture. The legs are long, the 

 tibiae deeply fluted, the tarsi long, with very long and conspicuous 

 fourth joint and unusually long and strong, free claws. The pro- 

 thorax is nearly as in the preceding, but the small scutellum is freer 

 and subquadrate, the elytral grooves deep, not distinctly punctate 

 except moderately at the sides and, gradually behind the middle, 

 become extremely coarse and with cariniform intervals. The three 

 species now known are as follows : 



Prothorax inflated and with strongly rounded sides; body stouter, smooth, deep 

 black throughout and polished, the elytra with series, in part confused, of 

 short and slender, sparse brownish setiform squamules, each puncture of the 

 under surface with a very minute, slender squamule; beak (<?) as long as 

 the elytra, thick, subcylindric, coarsely, confusedly punctured at the sides 

 basally, elsewhere with coarse deep furrows; antennae blackish, only moder- 

 ately long and near basal third; prothorax not quite as long as wide, the 

 strongly and evenly arcuate sides gradually parallel toward base, the strong 

 tubulation much less than half the basal width, with its margin feebly 

 sinuate at the middle; basal lobe long, strongly rounded at apex, with an 

 impression at each side at the thoracic base; punctures minute and remote, 



