Dry Flies
March Brown
The March Brown imitates Rhithrogena morrisoni, one of the first significant mayfly hatches of the season in western rivers. Its mottled brown wings and reddish-brown body accurately represent this early-season mayfly that triggers some of the year's most enthusiastic dry fly feeding.
Frequently Asked Questions
What size March Brown should I use?
The March Brown is most commonly tied in sizes 12–14. Choose smaller sizes for clear water and pressured fish, and larger sizes for faster or off-color water.
What does a March Brown imitate?
The March Brown primarily imitates March Brown mayflies, Rhithrogena morrisoni.
Pattern Details
- Category
- Dry Flies
- Sizes
- 12–14
- Colors
- Brown, Tan-brown
- Imitates
- March Brown mayflies, Rhithrogena morrisoni
- Water Types
- freestone
Target Species
rainbow troutbrown troutbrook troutcutthroat trout
Pattern Details
- Category
- Dry Flies
- Sizes
- 12–14
- Colors
- Brown, Tan-brown
- Imitates
- March Brown mayflies, Rhithrogena morrisoni
- Water Types
- freestone
Target Species
rainbow troutbrown troutbrook troutcutthroat trout