Hatch Imitations

Flies That Imitate Crippled Mayflies

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

Callibaetis Cripple fly pattern
Dry Fly

Callibaetis Cripple

This cripple pattern imitates a Callibaetis mayfly that failed to fully emerge from its shuck — stuc

Sizes 14–16

Last Chance Cripple fly pattern
Emerger

Last Chance Cripple

René Harrop's Last Chance Cripple imitates a mayfly that failed to fully emerge, trapped half-in, ha

Sizes 14–20

Quigley Cripple fly pattern
Emerger

Quigley Cripple

Bob Quigley's Cripple is a hybrid emerger with a nymph body below the film and a hackle-tip wing abo

Sizes 14–20

Film Critic fly pattern
Emerger

Film Critic

A low-profile emerger that sits right in the surface film, imitating a mayfly struggling to break fr

Sizes #16–#22