THE ENTOMOLOGY OF THE ERNE. 173 



2. Yellow — with a yellow, brown, or black 

 hackle, for stained water. 



3. Green — with a green hackle, or black 

 hackle, for sunshine. 



4. Blue — with a blue hackle (silver twist 

 or tinsel), for sunshine. 



5. Fiery brown — with a natural red hackle. 



6. Claret — with a black hackle (silver). 

 The shoulder hackle in all the species is 



generally of blue jay, which is prepared by 

 splitting the blue-barred feather of the 

 jay's wing, and scraping out the pith ; but 

 small flies are frequently hackled up with 

 the body hackle, or with the prevailing 

 colour of the fly, and fitted with wing co- 

 verts, generally of kingfisher. All these 

 flies are headed with black ostrich, if large, 

 or black silk, if small ; horned with maccaw, 

 yellow or red, according to the prevailing 

 colour of the fly, and winged with grey mal- 

 lard, of which the darkest, taken from the 

 oldest birds, is the best. 



The mixed wing genus has no under- 

 wings whatever, but its wings are formed 

 by mixing together the fibres of any de- 

 scription of feather, according to the judg- 

 ment of the maker. The prevailing colour 



