Wet Fly
March Brown
Tied by Darrell Olson
March Brown recipe
| Hook | GCO #9221, Size 14 |
|---|---|
| Thread | Uni-Thread 70 Denier Black |
| Tag | Gold French Tinsel – Extra Small |
| Tail | Bronze Mallard Flank Barbs |
| Body | Hare’s Ear Dubbing |
| Rib | Gold French Tinsel – Extra Small |
| Hackle | Speckled Partridge |
| Wing | Hen Pheasant Wing Slips |
About this fly
March Brown Wet Fly 2024 5th Annual Fly Tying Challenge for the FFI The March Brown wet fly is an excellent pattern for imitating mayfly nymphs and emergers. It’s particularly effective during mayfly hatches, when fish are actively feeding on the surface.
What the March Brown imitates
- Mayfly spinner (spinner)
Where the March Brown came from
- Described by Alfred Ronalds, 1836. Natural figured with dressing.Source: Ronalds, The Fly-Fisher's Entomology (2nd ed. 1839; orig. 1836), No.8 Flies for March, p.58
- Described by Francis Francis, 1867. Records regional names: Cob Fly in Wales, Brown Drake in Yorkshire.Source: Francis, A Book on Angling (1867), p.146
- Originated by unknown, England/Wales. Traditional imitation of Rhithrogena germanica; no maker recorded.Source: Ronalds, The Fly-Fisher's Entomology (2nd ed. 1839; orig. 1836), No.8 Flies for March, p.58
Where sources tell it differently, each account is listed with its own source.
In the old books
Original dressing as pictured in Marbury, Favorite Flies and Their Histories (1892), Plate S, No. 174. The photo above is a later tie, not the original.
Inside the vault every material on this fly opens to its own card, and you can save the fly to your own boxes.

















