Brazilian Barinle « 361 



Although foreign to the fauna at present under investigation, 

 this genus is introduced here for comparison, because of its very 

 exceptional structural characters. I cannot identify it with any 

 of the allies of Madams hitherto discussed, but Madams eutoxoides 

 and turn ef actus of Champion, belong without doubt to this genus. 



Madaropsides n. gen. 



The body in this genus is of somewhat similar general form and 

 smooth and polished, entirely glabrous integuments, but the pro- 

 thorax is shorter, the beak more slender and the antennae quite 

 different. The beak is evenly and rather strongly arcuate, and 

 tapers gradually and strongly from base to apex in the three speci- 

 mens of the type species at hand, which are probably females; it is 

 compressed basally, somewhat flattened distally and separated from 

 the head only by a very broad and shallow reentrant angle, the 

 mandibles rather thick, not dehiscent, their inner margins straight 

 but feebly denticulate. Antennas medial, the scrobes narrow, the 

 scape far from attaining the eye, the first funicular joint notably 

 elongate, as long as the next four joints, the second obconic, one- 

 half longer than wide, the following compactly joined, transverse 

 and increasing in width, the seventh as wide as the base of the club, 

 which is thick, oval and scarcely longer than the three preceding 

 joints, with its first two segments subequal. The rugosely punc- 

 tured prosternum has a deep, parallel and sharply defined smooth 

 canal, extending from the apical margin to the intercoxal suture, 

 the coxae large and separated by their own width. The femora are 

 long, mutic and not dilated, the tibiae much shorter, with very 

 slender apical spur and the tarsi longer than the tibiae and with 

 slender, moderate claws. The prothorax is briefly and broadly 

 tubulate, the basal lobe well developed, rapidly formed and evenly 

 rounded at tip, the scutellum moderate, slightly free, semicircular 

 and truncate at base, the elytra finely, obsoletely striate, not 

 exarate at apex and the pygidium semicircular, vertical and umbo- 

 nate at the middle in the type. The species are as follows: 



Antenna as described above. Beak smooth and polished, loosely punctured on 

 the compressed sides basally, about as long as the head and prothorax, the 

 lateral groove beyond the antennae very short and feeble; antennae piceous; 

 prothorax a fourth wider than long, the feebly converging sides broadly and 

 very slightly arcuate, rapidly rounding apically, the tubulation truncate 

 throughout and broad but not quite half as wide as the base; punctures very 

 fine and sparse throughout, almost obsolete medio-basally; elytra three- 

 fifths longer than wide, the slightly oblique sides feebly arcuate, the apex 

 obtuse, with broadly reentrant sutural angle, the humeri with large rounded 

 swelling, a fifth wider than the prothorax and not quite twice as long; sub- 

 apical umbones distinct; striae very fine and subobsolete, more distinct 



