Emerger
March Brown Sparkle Dun
All-day March Brown emerger
Trout · GraylingFilm
Sparkle Dun emerger for the spring March Brown hatch — a big early-season mayfly that trickles off across the day rather than in one burst, so fish stay looking up for hours.
Fish this when
Fish it through a spring March Brown hatch, when big duns trickle off steadily across the whole day rather than in one burst, keeping fish looking up for hours.
Why it works
The bulkier deer-hair wing gives the extra surface disturbance a big early-season mayfly makes breaking the film, at a size trout have learned to trust after weeks with little else moving.
Naturals it imitates
emerging March Brown
Typical zone & fishable range
usually
Surface
Film
Subsurface
Deep
Setup sensitivity: medium
Quick facts
Tying difficulty
Intermediate