March Brown
March Brown Flies
The March Brown hatch is one of the most anticipated spring mayfly hatches on trout rivers across North America. Both Western species (Rhithrogena) and Eastern species (Stenonema / Maccaffertium) produce large mayflies that bring trout to the surface during warm spring afternoons. These insects are commonly found on freestone rivers and riffled water where trout feed aggressively during the hatch.
March Browns typically appear from April through early June, depending on water temperatures and location. During the hatch, trout often feed on emerging nymphs first, followed by adult mayflies drifting on the surface.
Below you’ll find our selection of March Brown fly patterns, tied in proven styles and sizes for trout waters across the United States.
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Hare's Ear-Beadhead
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99Beadhead Hare’s Ear Fly The Beadhead Hare’s Ear is one of the most versatile and reliable nymph patterns ever tied—and for good reason. Built to im...
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March Brown - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89The March Brown is a common insect name given to many different insect species. At its most simple, if you are fishing early spring (doesn't have ...
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Eastern March Brown - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89The Eastern March Brown differs slightly from the Western version. This pattern here has a lighter body and gray wings. Rithrogena Germanica,Sten...
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Flashback Hare's Ear-Beadhead
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99A great improvement on this all-time classic pattern. Many nymphs take on a very shiny appearance right before emerging. Trout key in on this vu...
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March Brown Spider
$1.09Original priceOriginal price $1.09 - Original price $1.09Original price$1.09 - $1.09Current price $1.09One of the best searching patterns out there. When fish are feeding sub-surface, they cannot resist a soft hackled fly drifting by with that life...
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Hares Ear RubberLegs-Beadhead
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99All the amazing benefits of the Beadhead Hare's Ear with the added movement and enticing properties of rubber legs. Still the #1 nymph in the wor...
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March Brown Nymph
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99This pattern represents the March Brown nymph. In many places the emergence of this nymph represents the beginning of the spring fly fishing. This...
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Hare and Copper--Beadhead
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99One of the world's most popular prospecting flies, presented here a beadhead for the sink and wiggle. Buggy, flashy, suggestive of a plethora of ...
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Gray Fox - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Excellent for the Gray Fox hatch of West Virginia and other places. Also excellent for the Brown Drake in the Great Lakes regions. March Browns...
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March Brown-Beadhead
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99Excellent for spring high water everywhere. In many places the emergence of this nymph represents the beginning of the spring fly fishing. This pa...
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Parachute March Brown - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Parachute version of this popular mayfly hatch. Also great for Brown Drakes, and many other brown colored hatches. Rithrogena Germanica, Stenonema...
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Eastern March Brown Wet Fly
$1.09Original priceOriginal price $1.09 - Original price $1.09Original price$1.09 - $1.09Current price $1.09This pattern represents the Stenonema vicarium nymph. These are slow emergers and therefore a favorite of fly fishers. A very important spring pat...
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Eastern March Brown Nymph
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99This pattern represents the Stenonema vicarium nymph. These are slow emergers and therefore a favorite of fly fishers. A very important spring pat...
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Parachute Brown Drake - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Parachute version of this popular mayfly hatch. Also great for Brown Drakes, and many other brown colored hatches. Quill Body and CDC parachute gi...
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March Brown Wet Fly
$1.09Original priceOriginal price $1.09 - Original price $1.09Original price$1.09 - $1.09Current price $1.09Perhaps no other hatch is as anticipated as this early spring hatcher. This pattern also duplicates as a great searching pattern. Rithrogena Germa...
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Borcher's Drake - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Every once in awhile a fly comes around that is both extremely effective and versatile, that would be an underestimate for the Borcher's Drake. Kn...
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Red Squirrel Nymph
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99Absolute must in your fishing box, regardless of species. Imitates many under water food sources, has attraction, movement, a real classic. Create...
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March Brown Spider -Beadhead
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99A beautiful all-purpose soft hackle beadhead. Imitates a March Brown along with many other mayflies. Fish it in lakes, rivers and even works we...
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Red Squirrel Rubber Legs-Beadhead
$0.99Original priceOriginal price $0.99 - Original price $0.99Original price$0.99 - $0.99Current price $0.99An excellent searching pattern. Silhouette resembles enough food patterns to work everywhere. A real workhorse that is not fished enough for fish ...
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Foamback Emerger March Brown - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89This fly was designed to be buoyant, will fish all day long. The March Brown is the first riffle-hatching mayfly of the season in the west. The ...
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Brown Drake - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Redesigned and updated. Sure to be most effective during Brown Drake hatches, but useful during other drake, and march brown hatches as well. A na...
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March Brown CDC Emerger
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Not always on the water, but when they are the fish are always biting. Emerger patterns are great for the time of day when the hatch hasn't yet st...
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Doctor Drake - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Not really a fly designed to mimic any one mayfly hatch, more of a general purpose pattern when drakes are out. We like the parachute on this bug ...
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March Brown Cripple - Mayfly Dry Fly
$0.89Original price $0.99Original price $0.99 - Original price $0.99Original price $0.99$0.89 - $0.89Current price $0.89Cripples are a great option just as a hatch starts. The March Brown cripple is specifically designed to be fished during March Brown hatches. Rit...
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Morrish's May Day - Umpqua
$3.20Original price $3.55Original price $3.55 - Original price $3.55Original price $3.55$3.20 - $3.20Current price $3.20This sneaky little dry/emerger pattern can trick even the pickiest trout. The simple pattern has the right amount of wing material to really pique ...
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March Brown Tungsten Bomb Jig - Fulling Mill (Barbless)
$3.63Original priceOriginal price $3.63 - Original price $3.63Original price$3.63 - $3.63Current price $3.63Our (Fulling Mill's) weighted jigs are fast proving themselves as some of the most popular flies we make. Designed to get down fast, they're grea...
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How to Fish March Brown Hatches
March Brown hatches are a classic spring event on rivers, with larger mayflies that often bring trout to the surface. Fish typically feed on nymphs and emergers before rising to adults.
- Start with nymphs before surface activity begins
- Fish emergers during the early stages of the hatch
- Switch to dry flies when trout are consistently rising
When March Brown Hatches Occur
March Brown hatches typically occur in spring and are influenced by water temperature and river conditions.
- Most common from March through May
- Often strongest in the afternoon during warmer weather
- Typically found on rivers with moderate to fast currents
Fly Selection Tips for March Brown
March Browns are larger mayflies, so size and profile matter more than with smaller hatches.
- Use larger dry flies (sizes 10–14) during active hatches
- Fish nymphs when trout are feeding below the surface
- Adjust presentation in faster water and riffles