One of the patterns that's been working well this spring is my Anchor Caddis. A variation on Hans Stephenson "The Bomb." It's a generic Caddis Larva that I tie with or with out legs.
Hook: Mustad 3399 Size 6 - 10
Head: Tungsten Bead to Match Hook
Weight: .032 Non-lead Wire
Thread: Olive 6/0
Tail: Natural CDC
Ribbing: Green Wire
Abdomen: Olive Squirrel Dubbing
Hot Spot: Hairline Hot Orange UV Ice Dub
Thorax: Hairline Black UV Ice Dub
Legs*: Hungary Partridge or any Hen Hackle.
Here are the results:
Your results may vary.