Midge / EmergersCaddistrophic Pupa

Natural Behavior: During emergence, ascending caddis pupae create vulnerable silhouettes suspended in mid-column, struggling upward with gas bubbles trapped under wing cases that enhance their profile. Trout recognize this predictable upward swimming motion as easy calories during concentrated hatches when dozens rise simultaneously toward the surface film.

Where Trout Eat It: Productive in tail-outs, back eddies, and slower glides where pupae gather before hatching, typically in depths of 2-6 feet.

How to Fish It: Dead drift in the film during active hatches, or use a slow hand-twist retrieve in lakes to mimic the natural ascent.

Best Water: Focus on tail-outs, eddies, pool edges, and current seams where pupae concentrate before emergence.

Strike Type: During dead drift in the film or slow hand-twist retrieve in lakes, fish take with delicate sips just beneath the surface. Indicator movement is often barely perceptible — a gentle dip or sideways drift signals the take.

Rigging Suggestions: Use 5X-6X tippet for natural drift. Fish solo on a greased leader, behind a size 14-16 dry fly for visibility, or as the top fly in a two-nymph rig with 18-24 inches between flies.

Seasonal Timing: Most effective from April through October, with peak activity during caddis emergences. Early season hatches often occur on warmer afternoons. Fish during caddis emergence, typically late afternoon through dusk.

Pro Tips: The CDC collar provides subtle movement and keeps the fly riding just subsurface. In low light, the Fluoro Fibre wingcase helps you track the fly during the drift.