IGl 



CURCULIOXID^. 



[IjeConte. 



DORYTOMUS Scli. 



In this genus the prosternum is not emarginate in front, and the thiglis 

 are armed beneath with a distinct tooth; in the first three species tliis 

 tooth is small and acute, in the others broader and nearly rectangular. 

 The prothorax is narrower than the elytra, suddenly narrow^ed, and some- 

 times constricted in front, without postocular lobes. The body is mottled 

 with spots of pubescence, which in D. sqtiamosus is very short and scale- 

 like. The species occur mostly on willows. 

 Thighs more slender, tooth small, acute; beak very 



long, striate ; antennjic more slender, second 



joint of funicle longer than third 2. 



Thighs stouter, tooth broader and larger 3. 



2. Prothorax finely punctured, not constricted at 



tip 1. mucidus. 



Prothorax strongly punctured, suddenly con- 

 stricted at tip 2. laticollis. 



Prothorax densely punctured, gradually rounded 



and feebly constricted at tip 3. rufulus. 



3. Beak striate 4. 



' ' punctured, scarcely striate 7. 



4. Prothorax not wider than long 6. 



" distinctly transverse, coarsely and 

 densely punctured, suddenly narrowed at 

 tip and constricted 4. brevicollis. 



5 . Prothorax not constricted at tip 6. 



" constricted " " 5. luridus. 



6. " suddenly narrowed in front 6. subsignatus. 



" gradually rounded near the tip 7. longulus. 



7. Pubescence squamiform, slightly mottled, pro- 



thorax gradually rounded near the tip, not 



constricted 8. squamosus. 



Pubescence coarse, hairj', nearly uniform 8. 



8. Fulvous, wdtli yellow pubescence 9. Mannerheimii. 



Piceous with gray pubescence 9. 



9. Pubescence of elytra mixed with longer hairs. . lO. hirtus. 



" " " " erect stift'hairs 11. hispidus. 



1. D. mucidus. Erirhinus muc. Say, Cure. 14; ed. Lee. i, 277; Gyll., 

 Sch. Cure, iii, 291. 



Canada and Kansas, abundant at Los Angeles and Oakgrove, Cal.; G. R. 

 Crotch. Larger than our other species, and easily recognized by the more 

 finely punctured prothorax, and very long beak. Breeds in blossoms of 

 cottonw'ood; develops very rapidly, (Riley). 



2. D. laticollis n. sp. 



Pitchy black, irregularly mottled with cinereous pubescence. Beak very 

 long, slender, striate and coarsely punctured, strongly curved. Prothorax 

 wider than long, rather coarsely punctured, without dorsal line, sides 



