Brazilian Baring n 



Body less minute, with relatively smaller and more gibbous prothorax and more 

 broadly exposed and laterally prominent humeri, the strial intervals more 

 or less carinulate, at least in part; antennal club small, stout, its basal 

 segment nearly half the mass. [Type 0. ruficornis nov.] Omogonia 



4 Prothorax with converging arcuate sides and subtubulate tip, the elytral 

 humeri not laterally prominent, the intervals never carinulate; body convex, 

 much more ventricose than in Cyrionyx, the vestiture dense and more or 

 less nubilously variegated; beak rather long, gradually more or less tapering, 

 the antennae at or just behind the middle; abdomen with the usual short 

 third and fourth segments, the third and fourth sutures strongly reflexed at 

 the sides. [Type A. inflaticollis nov.] Anones 



Prothorax with parallel sides, rapidly narrowing apically 5 



5 — Beak short; antennae medial, the club small, its basal segment rather more 

 than half the mass; prothorax abruptly and conspicuously tubulate at apex; 

 abdomen as in the preceding, but with the fourth suture more narrowly and 

 feebly reflexed at the sides; body in great part glabrous and shining. [Type 

 L. tubulates nov.] Lioanones 



Beak rather long, not stout or tapering, the antennae submedial; abdominal 

 segments differing less in length, the fourth suture not distinctly reflexed at 

 the sides; prothorax narrowed but scarcely at all tubulate at apex; vestiture 

 of the elytra loosely fasciate; body larger than in the two preceding, more 

 oblong-elongate, the strial intervals flat or feebly subcarinate. [Type E. 

 funerea nov.] Eumicronyx 



So far as known Alhiria, Plesianones and Lioanones are mono- 

 typic, but the others are represented by numerous species. Omo- 

 gonia is probably Central American exclusively, including tropical 

 Mexico under this title. Some of the genera such as Cyrionyx and 

 Anones are widely diffused through the neotropics, but Eumicronyx 

 seems to be wholly Amazonian. 



Alluria n. gen. 



The proper position for this genus has been puzzling, but the 

 summation of its characters seems to place it as a remote ally of 

 Cyrionyx rather than in a distinct tribal group. The unusually 

 large prothorax is of peculiar outline and ornamentation, and the 

 humeri are less broadly exposed than in most of the Cyrionichini. 

 The type may be described as follows: 



Alluria spinosa n. sp. — Form oblong, rather convex, black throughout, the 

 head and pronotum clothed with slender whitish scales, more dispersed and 

 fulvous toward the carinate median line and with an oblique vitta near each side, 

 which is outwardly curved at the middle and unevenly bordered externally and 

 internally with black denudation, the elytra with loose linear fulvous scales, 

 variegated with some whitish areas posteriorly; under surface with broader 

 fulvous scales, dense and whitish almost throughout the prosternum, at the sides 

 of the abdomen basally and on the metasternum; beak distinctly longer than 

 the head and prothorax, in great part glabrous and finely, sparsely punctate, 

 with a few fulvous scales basally; antennae just beyond the middle, the first two 

 funicular joints elongate and subequal, the club elongate-oval, pointed, the first 

 segment less than half the mass; prothorax barely visibly wider than long, the 

 sides sinuate in basal half, very rapidly oblique before the anterior prominences, 



