Derbyshire Blue Dun
Hook - Gamakatsu Traditional Series (Model S12S-1F Straight Eye Hook / Size 18)
Thread - Pearsall's Gossamer Silk (Waxed Primrose)
Hackle - Whiting Hen Neck Hackle (Medium Dun)
Wing - Bundle of fibers from webby fibers from same hen neck (Medium Dun)
Tail - Three Fibers of Wood Duck Flank (Natural)
Thorax - Mole Fur (Natural/Dun)
This is my first attempt at my swap fly. I have chosen the Derbyshire style and am trying to work out the proportions on a very small hook (size 18). I would appreciate any feedback regarding the Derbyshire style, and any clues to what is likely to be incorrect about my fly.
Overall, this looks like a very fishy little fly. The hackle and webby wing bundle is very soft. It appears the fly would fish well. I imagine this pattern would fish very close to the surface film, looking like a crippled insect.
Anyway, I'd like to hear what changes are needed to be more accurate with the Derbyshire style.