This Mega Prince nymph fly pattern is a first-rate dark stonefly pattern for freestone river systems. I’ve been following the videos at In The Riffle for years and always appreciate that the flies that they tie are built with durability in mind. Prince Nymphs can be finicky little flies with all the goose biots, but this super-sized version, developed by Dan Delekta, keeps the legs and biots nicely separated with dubbing.
This type of fly would be ideal as the top pattern in a dropper rig, perhaps with a smaller prince nymph tied off the bend 12-18 inches apart. The Mega Prince has a lot of movement built into it with the barred rubber legs and marabou.
Mega Prince Fly Pattern recipe
Hook: #06-10 Tiemco 5262
Bead: Copper Cyclops Bead or Copper Tungsten Bead
Thread: Black Veevus 8/0
Tail: Brown Grizzly Marabou
Legs: Olive/Green Flake Barred Crazy Legs
Body: Peacock Herl
Rib: Copper Brassie Wire
Collar1: Natural India Hen Back
Wings: White Goose Biots
Collar2: Peacock Ice Dub