March Brown Spider
There are many spider patterns for this and Pritt gave five dressing (Great Brown, Brown Drake & Dun Drake) in his book.
No 11 Hook 3
Wings - From the tail of a Partridge
Body - Pale orange silk, dubbed with a little Hare's ear and yellow mohair, mixed; ribbed over with a little yellow silk.
Tail - Forked with two strands from a Peacock tail
Legs - From the back of a Partridge.
No 12 Hook 2
Wings - From a quill feather of a hen pheasant
Body, Tail and Legs - as in no 11
No 13 Hook 2
Wings - Hackled with a reddish feather from he outside of a Woodcock's wing
Body - Orange silk dubbed over with a little fur from a Fox's ear
No 14 Hook 2
Wings - From tail of a Partridge Body - Orange and yellow silk twisted, dubbed with fur from a Fox's ear
Leg's - From a Wren's tail
No 15 Hook 2
Wings - from the Hen Pheasant's wing
Body and Legs - Same as No 14
He went on to explain:
"The five dressings here given admit of little preference as killers. The hackled fly - though comparatively rarely dressed - will be found very successful on cold, rough days, and the winged flies are indispensable on fair days through March, April and not frequently into May."
This is my version, which works equally well and tied similar to the ‘Kite Spider’