Coleopterological Notices, III. 17*7 



broad flattened beak which is occasionally feebly carinate along the 

 middle and always strongly dilated at apex, by the angulate or 

 tuberculate sides of the prothorax, prosternal spines and absence 

 of brushes of yellow spongy pubescence from the lower surface of 

 the tarsal joints, the latter being simply coarsely and sparsely 

 spinose. I have been obliged to change the name originally given by 

 Dr. LeConte, as the name Centrocleonus had been assigned by 

 Chevrolat three years before to a South African genus or sub- 

 genus. Our species may be readily identified by the following 

 table : — 



Alternate eljtral intervals more strongly elevated, especially toward base. 

 Elytral setae long and bristling. 



Larger species, the alternate intervals very strongly elevated ; head 

 coarsely, densely punctate ; genje almost glabrous ; vestiture longer 



paler and extremely dense pilosus 



Smaller species, the alternate intervals feebly elevated ; head more 

 sparsely punctate ; gense densely pubescent ; vestiture shorter, sparser 



and darker in color jacolliuus 



Elytral setae short and inconspicuous. 



Beak finely, distinctly carinate along the middle. 



Robust and suboval ; elytral vestiture whitish, denuded in large blotches 

 of which a large oblique area near basal third and a broad transverse 



fascia at apical third are especially noticeable annularis 



Narrower, more parallel and more depressed; vestiture cinereo-ferrugi- 

 nous, extremely dense, and denuded on the elytra only in a few small 



spots denticollis 



Beak not carinate, sometimes feebly, narrowly bisulcate. 



Alternate intervals rather strongly elevated ; elytral vestiture finer 

 shorter and sparser, not denuded, although much sparser in a broad 

 discal region near basal third and a narrower transverse fascia at 



apical third porosus 



Alternate intervals more feebly elevated ; elytral vestiture coarser, 

 more squamiform, much denser and more recumbent but in great part 

 denuded in very large blotches especially in the same regions as in 



porosus farctiis 



Alternate intervals not more strongly elevated or only extremely feebly so ; 

 form more elongate-oval. 

 Sutural stria of the elytra not more strongly impressed. 

 Sutural interval not dissimilar in vestiture. 



Elytral vestiture dense, persistent, denuded, in small widely distant 

 areas, in which the punctures of the elytral series become con- 

 spicuously larger. 

 Large species, very robust, the sides of the prothorax feebly diver- 

 gent and arcuate from the tubercles to the base sagiliatllS 



