Hatch Imitations

Flies That Imitate Caddis Larvae

15 proven patterns designed to match caddis larvae across multiple life stages. From subsurface nymphs to surface duns, these are the flies that consistently fool selective trout.

Hare's Ear Nymph fly pattern
Nymph

Hare's Ear Nymph

Buggy, messy, and irresistible to every trout in the river.

Sizes 10–18

Frenchie fly pattern
Nymph

Frenchie

The Euro nymphing gateway drug.

Sizes 12–20

Iron Lotus fly pattern
Nymph

Iron Lotus

A modern Czech nymph with a woven body, tungsten bead, and hot spot collar. Built for heavy Euro nym

Sizes 12–16

Walt's Worm fly pattern
Nymph

Walt's Worm

Walt Young's deceptively simple nymph uses hare's ear dubbing on a curved hook to imitate caddis lar

Sizes 12–16

Mop Fly fly pattern
Nymph

Mop Fly

The Mop Fly — made from a strip of chenille mop material on a jig hook — is the most controversial a

Sizes 10–14

Flashback Hare's Ear fly pattern
Nymph

Flashback Hare's Ear

The Flashback variant adds a strip of pearl tinsel over the wing case of the classic Hare's Ear, pro

Sizes 12–18

Squirrel Nymph fly pattern
Nymph

Squirrel Nymph

Dave Whitlock's Squirrel Nymph uses fox squirrel body hair and tail as dubbing for a buggy, all-purp

Sizes 10–16

Two Bit Hooker fly pattern
Nymph

Two Bit Hooker

A hot-collared jig nymph that combines a wire body with a fluorescent dubbing collar for a slim, fas

Sizes 14–18

Sexy Walt's Worm fly pattern
Nymph

Sexy Walt's Worm

A modernized version of Walt's Worm with a UV dubbing body and a glass bead for subtle weight and tr

Sizes 12–16

Polish Woven Nymph fly pattern
Nymph

Polish Woven Nymph

The Polish Woven Nymph features a two-tone woven body that creates a durable, segmented abdomen rese

Sizes 10–16

Tungsten Torpedo fly pattern
Nymph

Tungsten Torpedo

A heavy, streamlined Euro nymph with a smooth thread body under UV resin and a large tungsten bead.

Sizes 10–14

Jig Perdigon fly pattern
Nymph

Jig Perdigon

A slick, heavily-weighted Spanish competition nymph designed to sink fast through the water column o

Sizes #14–#20

Blowtorch fly pattern
Nymph

Blowtorch

A flashy attractor nymph that combines a bright hot spot with a dark body to create maximum contrast

Sizes #12–#16

Tungsten Jig Hares Ear fly pattern
Nymph

Tungsten Jig Hares Ear

The classic Hares Ear profile reimagined on a modern jig hook with a heavy tungsten bead for Euro ny

Sizes #12–#18

Czech Nymph fly pattern
Nymph

Czech Nymph

The pattern that launched the tight-line nymphing revolution. Developed by Czech competition anglers

Sizes #8–#14