Coleopterological Notices, IV. . 523 



Pronotal punctures much smaller, the median line totally obsolete. 



2 corrosa 

 Body strongly depressed, roughly sculptured, the elytral setae long, very 



robust, dense and conspicuous 3 depressa 



5 — Prosternum feebly impressed along the middle, the anterior coxae separated 

 by but slightly more than their own width ; large species, with very large 

 prothorax, the latter nearly as long as wide, the elytra relatively short, 



the beak stout 4 millepora 



Prosternum flat, the anterior coxae smaller and more remote. 



Punctures of the elytral intervals broadly confused throughout. 

 Elytral setae coarse, long and conspicuous but not very dense. 



5 austera 

 Elytral setae very small, slender and only noticeable because of their 



greater abundance 6 insidiosa 



Punctures of the elytral intervals moderate in size, broadly confused only 



toward base, forming single series toward apex 7 S ill) toil sa 



6 — Elytral punctures larger, distinct and generally close-set ; intervals nar- 

 row ; body less slender 7 



Elytral punctures very minute and remote, the intervals wide, flat 9 



T — Body, legs and beak intense black throughout; small species... 8 argllta 

 Legs and beak rufous, the entire body also frequently more or less rufo-pice- 



ous 8 



S — Body rufo- ferruginous, the elytra black, smoother, with alutaceous lustre, 

 the interstitial punctures rather less coarse and separated by about their 



own diameters 9 and ax 



Body unicolorous throughout, black or more or less rufo-piceous ; interstitial 

 punctures always coarse, deep and occupying the entire width of the 

 intervals or very nearly. 

 Larger species, the prothorax nearly as long as wide and the elytra rela- 

 tively shorter. 



Surface strongly shining, black 10 stictica 



Surface opaque from the extreme density of the sculpture ; body dark 



blackish-piceous in color 11 mystica 



Small species, the prothorax distinctly transverse. 



Elytral setae very small and inconspicuous ; legs and beak pale rufous. 



12 egena 

 Elytral setae longer, conspicuous ; legs and beak darker, piceo-rufous, the 

 former a little shorter. 

 Sides of the prothorax parallel ; elytral setae erect, bristling, those of 



the strial punctures almost as long as the others 13 ambigua 



Sides of the prothorax feebly divergent from the base; elytral setae 

 shorter, more inclined, more distant and less conspicuous ; those of 

 the strial punctures very small and scarcely at all visible. 



14 pauperella 



9 — Body narrow, parallel ; very small species 15 seriata 



lO — Elytral intervals wider than the striae 11 



Elytral intervals not wider than the grooves 14 



Annals N. Y. Acad. Sci., VI, Sept. 1892.— 31 



•ir. 



