NymphAaron's Callibaetis Nymph
Aaron's Callibaetis Nymph is a purpose-built stillwater pattern designed to match the Callibaetis mayflies prevalent in western lakes and ponds. The muskrat grey dubbing body, mallard flank tail, and UV Ice Dub wing/gill combination create a realistic mayfly nymph profile. The Dazzle Brass bead adds subtle flash and weight.
Spring, Summer, Fall
Intermediate
Trout
Overview
Aaron's Callibaetis Nymph was designed specifically for stillwater fishing where Callibaetis mayflies are the primary food source. The pattern incorporates UV materials in the wing/gill area to add subtle attraction without appearing unnatural. The amber wire rib mimics the segmentation visible on natural nymphs.
Pattern Characteristics
Materials
Hook: Tiemco 3761, #16
Thread: Uni-Thread, 8/0, grey
Bead: Dazzle Brass Bead, 5/64", metallic pheasant tail brown
Tail: Mallard Flank, natural
Body: Hare's Mask Dubbing, muskrat grey
Rib: Ultra Wire, small, amber
Wing Case: UTC Flashback Tinsel, medium, black
Wings/Gills: Ice Dub, UV grey
Fishing Tips
Season
Most effective from late spring through early fall when Callibaetis are active. Peak performance during afternoon hours when nymphs become active.
Presentation
Fish with a slow, steady retrieve or figure-eight motion in stillwater. Let the fly sink to the depth fish are feeding, then retrieve with pauses.
When to Use
Best during Callibaetis hatches or when fish are cruising and feeding subsurface. Excellent choice when trout are taking nymphs before the hatch.
Water Type
Designed for lakes, ponds, and slow-moving spring creek water where Callibaetis thrive.
Rigging Suggestions
Fish on a floating line with long leader (12-15 feet) to reach feeding depth. Intermediate lines work for deeper presentations.
Visibility & Floatation
Sinks slowly with the brass bead. The UV Ice Dub gills add subtle flash visible to fish.
