268 Memoirs on the Coleoptera 



the tarsi all broad, closely punctulate and pubescent above, and 

 with a dense brush of erect fulvous setae throughout beneath; the 

 setae bristle also along the sides in fimbriate form. The prothorax 

 is abruptly and strongly tubulate at apex, the basal lobe gradual, 

 with its apex deeply sinuate, the scutellum transverse and free, 

 and the elytra with prominent humeri and deep coarse entire 

 grooves, punctured along the bottom laterally. There are two 

 species at hand as follows: 



Body large and stout, rhombic, convex, deep black throughout, the elytra with 

 feeble piceous tinge, wholly glabrous and with fine sparse punctulation above, 

 still remote but stronger beneath; beak (o 71 ) very strongly arcuate and 

 almost as long as the body, evenly cylindric and rather slender through- 

 out and finely, sparsely punctate, closely and coarsely so at the sides toward 

 base, not in the least compressed; antennae piceous, very long, the slender 

 club nearly as long as the four preceding joints; prothorax only a fifth or sixth 

 wider than long, the sides strongly arcuate, becoming not only parallel but 

 somewhat incurvate at base, the broad strong tubulation not quite half as 

 wide as the base; scutellum with a few punctures at base, transverse, some- 

 what narrowed basally, truncate and declivously impressed at apex, with 

 sharp angles; elytra short, barely longer than wide, the oblique sides nearly 

 straight, the apex broadly, evenly rounded, nearly a fourth wider than the 

 prothorax and one-half longer; posterior discal elevation moderate but dis- 

 tinct; grooves a little coarser at tip; surface with fine but deep, remote 

 punctures as on the pronotum; male abdomen simply flattened at base, but 

 otherwise unmodified, the median line deeply impressed at the extreme 

 base; prosternal spines extending beyond the head by a distance equal to the 

 length of the head and prothorax. Length 9.5 mm.; width 5.6 mm. Brazil 

 (Chapada). October. One specimen sarpedon n. sp. 



Body much smaller and not so stout, shining and deep black throughout ; punctu- 

 lation above similarly remote and a little finer, the constriction at the base 

 of the apical tubulation similarly rather coarsely punctured throughout the 

 width; beak (o 71 ) slender, cylindric and strongly arcuate, similarly more 

 strongly so medially than toward base or apex, finely punctate, coarsely but 

 loosely so toward base, a little shorter than the body; antennae piceous, 

 almost similar, the club very slender, gradually pointed from about its 

 middle and as long as the four preceding joints; mandibles nearly similar; 

 prothorax similar but almost a fourth wider than long; scutellum transverse, 

 narrowed at base, flatter and with the apex broadly, obtusely angulate; 

 elytra as long as wide, the humeri similarly prominent, the oblique sides 

 more arcuate, the apex somewhat more strongly rounded; grooves almost 

 similar, abrupt and deep; male abdomen scarcely more than flattened 

 basally, more strongly punctured but not medially impressed at base; 

 prosternal spines shorter, not quite as long as the prothorax in the type; 

 tarsi above darker and less fulvous. Length 7.0 mm.; width 4.25 mm. 

 Brazil (Santarem). One example mandibularis n. sp. 



The genus Xenisus, of Pascoe, would seem to be related to the 

 one here described, though no mention of the mandibles is made 

 by the author, who, however, states that the beak is longer than 

 the body, that the first funicular joint is as long as the club, while 

 here it is much shorter, the prothorax transverse, which could 



