Unless anybody knows what this is a variant of, it will just go under the name 'Grey Fly'.
Mr Gibson, I strongly suggest you take a look at this as it is very effective at the time of year that you will be visiting here!
Materials -
Thread - Any fine colour match grey
Hook - Size 12 Captain Hamilton International CS7
Tail - Mylar strands from medium mylar tubing
Rib - Fine silver tinsel
Body - Turrels grey floss
Hackle - Matched grey cock hackle
Nothing complex about the tie apart from the substituted finished fly as I inadvertantly caught the set up and bent the hook!
Wind the thread down to above the hook point
Catch in 6 strands of the Mylar material
Tie in the ribbing
Followed by the floss
Create a slim carrot shaped body
Bring the rib forward on even turns to behind the head
Select a grey hackle to match the body colour as closely as possible and tie in
Whip finish and secure head with clear varnish or SHHAN to finish the fly
The Grey Fly, until named otherwise!