Dry fly
March Brown
TroutSurface
The March brown nymph pattern — heavily built with a thick body and generous thorax suggesting the robust shape of the natural insect. Essential when March brown hatches bring feeding fish to the surface.
Fish this when
March through May on limestone and chalk streams. Fish the nymph on a swing or indicator, or hang a dry off the bend when the hatch is underway.
Why it works
March brown nymphs are bulky, visible in the substrate, and actively feeding — everything about this pattern reflects the real insect's confidence.
Typical zone & fishable range
usually
Surface
Film
Subsurface
Deep
Setup sensitivity: medium
Buy or tie?