Midge / EmergersPueblo Emerger
The Pueblo Emerger is a versatile pattern that is effective in a variety of fishing situations. It's a great choice when trout are selectively feeding on emergers just beneath the water's surface, making it a must-have in every fly box.
Spring, Summer, Fall
Intermediate
Trout
Apr 2025
Overview
This BWO emerger pattern features a slim thread or superfine dubbed body, sparse CDC wing, and trailing shuck. It sits low in the film and imitates a blue-winged olive in the transitional stage. Often tied on a curved emerger hook in sizes 18–22.
Materials
Hook: #14–18 Daiichi 1560
Thread: Olive 12/0 Veevus
Tail: Olive Zlon or Antron yarn
Body: Orange midge tubing
Casing: Olive Zlon or Antron yarn
Thorax: Gray olive Superfine dubbing
Legs: Partridge feather
Behavior & Presentation
Natural Behavior: Midge pupae hang vertically in the surface film, their bodies trapped in the meniscus during transformation from aquatic to winged adult. The struggle to break through surface tension leaves them suspended and vulnerable for extended periods.
Where Trout Eat It: Surface film in smooth glides, back eddies, and flat pools. Fish cruise just below the film targeting stuck emergers in calm zones.
How to Fish It: Dead drift in or just below surface film. The CDC wing keeps the fly riding in the meniscus while the body hangs suspended, matching the trapped emerger perfectly.
Best Water: Seams, tail-outs, foam lines, and back eddies where surface insects accumulate. Target flat pools and riffle edges in slow water.
Strike Type: Watch for soft surface rings or barely visible sips; set with a smooth lift when you see the rise form.
Fishing Strategy
Rigging Suggestions: Use 5X-7X tippet with 10-12 foot leaders for delicate presentations. Fish as a dropper 12-18 inches off a visible dry fly or in a tandem rig with another emerger. Grease leader but leave last 12 inches untreated.
Seasonal Timing: Most effective from March through October, with peak productivity during (April-May) and (September-October) when midge activity increases on overcast days and during cooler morning hours.
Pro Tips: The peacock thorax and CDC wing create a realistic silhouette in the film. Vary body colors (black, olive, red, brown) to match local midge populations. Sizes 18-22 are most effective.
Entomology
Emerging midges hang vertically in the surface film as they transform from aquatic pupae to winged adults, their bodies trapped in the meniscus while struggling to break through the water tension. Trout cruise just beneath the surface to sip these helpless insects, which remain vulnerable for several minutes during the critical emergence phase.
- Order
- Diptera
- Family
- Chironomidae
- Common Name
- Midge
- Organism Type
- insect
- Life Stage
- general