572 Coleopterological Notices, VI. 



Legs bicolored, the femora hlack. 



Elytral pubescence blackish and inconspicuous but becoming ashy to- 

 ward base 5. breriusculus 



Elytral pubescence pale cinereous throughout, even Init rather sparse; 



body more elongate 6. dissiiiiiilis 



3 — Elyti'al yestiture uniform in distribution, cinereous and distinct but not 

 very dense or coarse. 

 Legs black or blackish in color. 



Larger species, the head smaller; elytral vestiture consisting of shorter 

 and longer hairs which are confusedly intermingled..?, fastidiosus 

 Smaller and narrower, the head almost as wide as the prothorax ; yesti- 

 ture even and less dense 8. iiiacer 



Legs bicolored, pale rufous, the femora black. 



Prothorax moderately transverse; elytra with very short and sparse 

 erect hairs, intermingled throughout with the more decumbent pubes- 

 cence 9. cruralis 



Prothorax twice as wide as long, the erect hairs of the eh'tra extremely 



short and indistinct, only visible toward apex 10. depressilllis 



Legs pale rufo-ferruginous throughout, the posterior femora occasionally 

 slightly darker. 



Prothorax much narrower than the base of the elytra 11. piisilluj^ 



Prothorax equal in width to the base of the elytra 12. luinutus 



Elytral vestiture uneven in distribution, the pale hairs forming a broad me- 

 dian and apical fascia 13. seininiidiis 



4 — Body stout, convex, very densely clothed with coarse and decumbent pale 

 pubescence, without trace of erect setai 14. liiieelllis 



The American species of Dasytes inhabit the true Pacific coast 

 faunal regions almost exclusivel}^ the few forms known from the 

 Rocky Mountains having probably descended from the north, in 

 conformity with well known laws of distribution. 



1. D. liudsonicus Lee— Proc. Acad. Nat. Sci., Phila., 1866, p. 360. 



Stout, oblong, moderately convex, shining, deep black through- 

 out, the legs and antenna not at all paler ; pubescence of the pro- 

 notum short, sparse, subcinereous and intermixed with consider- 

 ably longer stiff erect black hairs, of the elytra black, suberect 

 and moderately dense throughout, with a large proportion of the 

 hairs a little longer and more erect, especially tow^ard the sides. 

 Head transverse, three-fourths as wide as the prothorax, feebl}' 

 rugulose, finely but stronglj- and somewhat closely punctate, the 

 front broadly impressed ; ej'es moderate ; antenna? slender, fili- 

 form, about as long as the head and prothorax, the penultimate 

 joints fully as long as wide, the eleventh elliptical and nearly 

 twice as long as wide. Prothorax twice as wide as long, widest 



