Tungsten bead or dumbbell eyes Copper/black dumbbell eyes (1)
Rabbit or marabou Rusty brown (1 small clump for claws)
Ice dubbing Brown/orange ice dubbing (for body)
Rubber legs Brown silly legs nymph size (1-2 pairs)
How to tie it
Bead or dumbbell on, hook mounted, thread started and run to the bend.
Tie in a short clump of rusty rabbit or marabou at the bend, splayed slightly, to suggest crayfish claws facing back over the hook eye (the fly is fished pincers-trailing).
Add a pair of rubber legs at the rear, splayed to the sides.
Dub a fat, buggy body of brown-orange ice dubbing forward toward the bead, tapering up.
Add a second pair of rubber legs at the thorax, then build up dubbing to the bead.
Whip finish behind the bead and cement.
Other versions
2 more in the app: Fly Fish Food Tie, variant 1, Fly Fish Food Tie, variant 2.