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Mike Mercer’s Jiggy Caddis Pupa is more than just a fly—it’s a tribute to the legendary Gary LaFontaine and a modern reimagining of his Deep Sparkle Pupa. Drawing inspiration from one of the most influential patterns in the evolution of caddis imitation, Mercer refines the original’s concept using today’s high-performance materials and innovative rigging techniques.
This pattern fuses the fish-pulling power of translucent sparkle material with dynamic movement and a modern jig profile. With a slotted tungsten bead and Tiemco jig hook, it gets deep, stays in the zone, and avoids snags—perfect for those bottom-skulking trout waiting for caddis pupae to drift by. Whether you’re prospecting freestone rivers or targeting pressured tailwaters, this is the pupa pattern that delivers old-school effectiveness in a new-school silhouette.
Style Number: 63032
Signature Tyer: Mike Mercer
Inspired By: LaFontaine’s original Deep Sparkle Pupa
Bead: Heavy tungsten slotted bead for rapid sink rate
Hook: Sharp, barbless Tiemco jig hook for ideal drift orientation
Presentation Style: Euro-nymphing, indicator rigs, or tight-line
Water Conditions: Effective in riffles, seams, and deep runs
Design Highlights: Translucent body, natural silhouette, modern motion
| Attribute | Description |
|---|---|
| Pattern Name | Mercer's Jiggy Caddis Pupa |
| Hook Type | Tiemco barbless jig hook |
| Bead | Slotted tungsten |
| Species | Trout |
| Primary Use | Imitates ascending or drifting caddis pupae |
| Ideal Conditions | Clear to slightly stained water; deep or mid-depths |
Mercer’s Jiggy Caddis Pupa brings deep-sinking innovation to a timeless fly design. A deadly caddis imitation with modern materials and a snag-free jig profile.