Nothing new here I'm afraid, but a fly which returns maximum reward for minimum effort, with great scope for variation. Being the lazy sod that I am, 90% of my river bugs follow this basic format.
Tung head hare's ear
Hook: Kamasan B175 #14
Bead: Black tungsten 2.8mm
Underbody: Fine lead wire (0.40mm)
Thread: 14/0 tan
Tails: Olive PT
Rib: Fine copper
Body: Dubbed hare's ear.
1. Slip on the bead and wedge about 4 turns of the lead wire up behind it, into the recess at the back of the bead.
2. Run on the thread and secure the lead turns.
3. Catch in the PT fibres (approx 4nr) and bind down to rear of shank. Trim off waste butts.
4. Catch in the wire rib and bind down to rear or body, then use the thread to form a tapered body.
5. Dub on your hare's ear roughly.
6. Wind up the wire rib, secure behind the bead, wiggle to break off waste and whip finish the fly.
As I mentioned, tons of variation possible. The one below is identical save for a red wool tail and a thorax of peacock ice dub - a good pattern for the grayling on my rivers....
Matt