Brazilian Baring 



33i 



sometimes foveate at apex, the posterior lobe large, truncate as in Solariopsis; 

 legs slender, the femora mutic; under surface not densely cribrate in any 

 part; thoracic lobe large, evenly rounded and gradual as in Madarus. [Type 

 R. atratns Kirsch — Peru] Radamus 



37 — Form oval, stout, very much as in Stethobaris; surface shining, glabrous, 

 sparsely and feebly punctulate, the thoracic lobe broadly rounded, with a 

 deep median nick, the scutellum narrow, elongate and parallel; elytra 

 coarsely, deeply grooved, the pygidium small and subvertical; beak moder- 

 ate, arcuate, the antennae medial, short, with rather large and elongate- 

 oval abrupt club; prosternum longitudinally impressed, the coxae separated 

 by about their width; femora moderate, mutic. [Type S. nudiventris 

 Chmp.] Stethobaroides 



Form more elongate-oval, the surface subopaque, coarsely and closely punctate, 

 with a few squamules, the thoracic lobe feeble, shallowly sinuate, the scutel- 

 lum obtriangular, as wide as long, the elytra deeply grooved; pygidium 

 large, very oblique and conspicuous from above; beak moderately long, 

 feebly arcuate, the antennae slightly ultra-median, with very small and 

 abrupt club; prosternum flat, deeply constricted, separating the coxae by 

 slightly less than their width; legs moderate, the femora mutic. [Type H. 

 obliquatus nov.] Hasidus 



38 — Body short, broadly oval, glabrous, rather shining; beak extremely short, 

 straight and conical; antennae very short, post-medial, with small and 

 gradual club, having a polished glabrous basal segment; eyes large, con- 

 tiguous beneath; prosternum feebly impressed, separating the coxae by 

 about their width; legs short, simple, with narrow tarsi, having a very 

 slender claw-joint; prothorax not tubulate, the basal lobe small, prominent, 

 narrowly truncate, the scutellum small, somewhat free; elytra shallowly 

 striate as a rule; pygidium oblique, somewhat large (d 1 ), small and vertical 

 (9); propygidium invisible (cf), very large and conspicuous ( $ ). [Type 

 Baridius mutilus Boh.] Brachybaris 



The Madarini include a greater variety of structural types than 

 any other tribal group, such genera as Conoproctus, Paramadarus, 

 Tropidobaris, Piperis and Brachybaris, being extraordinary develop- 

 ments. In the course of time it will probably be found desirable to 

 divide it into several distinct tribes, but their limitation will prove 

 difficult. Typical Madarus apparently does not occur in Central 

 America, and at present, there are in that region many distinct 

 genera of this tribe still undefined; some of these have a deeply 

 canalate prosternum, a character wholly foreign to Madarus, and 

 there are many other special definitive structural characters among 

 them. 



Notesia n. gen. 



In this genus the body is oval or oblong-oval, more or less de- 

 pressed, subglabrous and with diversified sculpture, varying from 

 fine to exceptionally coarse. The beak is moderate in length, not 

 separated from the head by an impression, straight, subulate and 

 basally thickened, or feebly arcuate and more cylindric, probably in 

 the male, though otherwise it is almost impossible to distinguish 

 the sexes. The mandibles are prominent when closed and with the 



