Use a strong tippet in the larger sizes. Be ready for sudden, violent rises when there is not much going on.
The hook sizes can vary from size 8 down to 14 depending on the sedge flies that are about. In the colour scheme here it seems to represent the Great Red Sedge quite well but it is not an exact match for anything. It hints at everything instead. Use pale materials and it makes a good moth for those all nighters in high summer when the scent of sweet rocket fills your nostrils and the air feels heavy with the prospects of good Sport...
Dub on a fairly generous pinch of cinnamon seal's fur - it's a mucky yellowy olive colour
Wind the body, the seal's fur should be used up just as you reach the end of the body
Rib the body with open spiralled turns of the thread and then continue for four turns to make a bed for the wing
Take a bunch of deer hair and gauge it against the body and bend so the tips are roughly aligned with the hook bend
Swap hands and hold the bunch of deer hair tight, clip off the waste prior to tying the bunch in
Tighten up the turns and make the wing flare a little as you tie it tight next to the body
Trim off the flared waste ends and dab a small spot of varnish on the remaining root ends of the deer hair. (I use Sally Hanson Hard as Nails.)
Before the varnish has dried wind the thread forward to make a bed for the hackle stalk
Tie in the red hackle ("brown" in America) like this with the concave, dull side of the hackle facing you and, in tying in the hackle stalk, wind a bed of thread ready for the hackle turns. Leave the thread dangling at the front of the body and wing.