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Midge / EmergersChironocones

The Chironocones is a midge larvae imitator with a realistic profile and a bit of flash on the thorax. It sinks quickly and can be effective when fished near the bottom.

Season
Year Round
Difficulty
Intermediate
Target Species
Trout
Updated
Apr 2025
Chironocones fly pattern - imitates Midge Larvae tied for Trout

Overview

Chironocones are minimalist, Euro-style midge imitations designed for fast sink rates and subtle profiles. Typically tied with a tungsten bead, thread body, wire ribbing, and a touch of UV resin for durability and flash, they excel in technical tailwaters. These flies are ideal for tight-line nymphing and are often fished as part of a two-fly rig.

Materials

Hook: #10-16 Tiemco 2457
Thread: Red UTC 70
Bead: White Sno Cone Bead
Body: Small or Medium Red D-Rib
Collar: Peacock Herl

Behavior & Presentation

Natural Behavior: Midge larvae inhabit silty bottom substrates in still and slow-moving waters, constructing delicate tubes from silk and fine sediment while their bright red hemoglobin-rich bodies extend to feed on detritus. They emerge from their tubes to forage or relocate, becoming vulnerable when exposed or when currents wash them from protected positions along soft lake bottoms in 10-30 feet.

Where Trout Eat It: Trout target this pattern along silty lake bottoms in 10-30 feet where chironomid larvae construct tubes. Fish suspend mid-column tracking ascending pupae throughout the water column.

How to Fish It: Suspend 12 inches off bottom using strike indicator and long leader. For deeper water, use type 7 sinking line with vertical dangling technique. Initiate slow steady retrieve ascending through water column.

Best Water: Target drop-off edges and shoals with muddy substrates in 10-30 feet of depth.

Strike Type: Suspended 12 inches off bottom using strike indicator or type 7 sinking line with vertical dangling technique, takes appear as indicator twitches or slow draws. Initiate slow steady retrieve ascending through water column — fish intercept with gentle pulls along drop-off edges and shoals.

Fishing Strategy

Rigging Suggestions: Use 6X tippet with a two-fly nymph rig or as a dropper below a dry fly. In lake, suspend 6-12 inches off the bottom using a strike indicator and long leader.

Seasonal Timing: Effective year-round with peak productivity during (April-June) and (September-November) when major chironomid hatches occur. Water temperatures of 40-60°F trigger the most prolific emergences.

Pro Tips: The red holographic tinsel thorax imitates the hemoglobin-filled larvae that trout prefer. Match your size to naturals—typically size 14-20. The cone shape sinks quickly to reach feeding zones in deep water.

Entomology

Midge larvae inhabit silty bottom substrates in still and slow-moving waters, constructing delicate tubes from silk and fine sediment particles while their bright red hemoglobin-rich bodies extend to feed on detritus. They emerge from their tubes to forage or relocate, becoming vulnerable when exposed or when currents wash them from protected positions. Trout grub along soft bottoms specifically targeting these larvae beds because the localized concentrations provide dense, easily accessible protein despite the small individual size of each larva.

Order
Diptera
Family
Chironomidae
Common Name
Midge
Organism Type
insect
Life Stage
larva

Pattern Characteristics

Intermediate Difficulty
Trout
Stillwater
Moving Water
Year Round
Imitates: Midge Larvae
Worldwide
dead-drift
midge-hatch
low-clear-water
tailwater