Mercury Brassie Midge

Small Fly. Big Results.

When the fish are keyed in on midges and nothing else is working, the Mercury Brassie earns its keep. A slender wire body gives it the slim, segmented profile of a natural midge larva or pupa, while a mercury glass bead head adds a distinctive air bubble effect that trout associate with emerging insects. It's a simple fly with a proven track record on tailwaters and spring creeks across the country.

What's in the Pattern

• Hook - Fulling Mill Heavy Barbless FM5067
• Wire body — slim, segmented, and durable; sinks fast and holds its shape cast after cast
• Mercury glass bead head — mimics the trapped air bubble of an emerging midge pupa, one of the most effective triggers in midge fishing
• Five color options — black, green, green/silver, red/black, and red to match a wide range of midge species and water conditions
• Hand-tied at Ty's Flies with precise proportions in every size

Match the Hatch, Any Time of Year

Midges hatch year-round, which makes the Mercury Brassie one of the most reliable flies in any box regardless of season. Fish it as a point fly under an indicator, trail it behind a larger anchor nymph, or swing it through the tail of a pool during a midge hatch. Available in sizes 18–22 — go small and go confident.

Tiny profile. Proven trigger. Hand-tied at Ty's Flies.