Nymph
Black Stonefly Nymph
Early-spring dark stone crawler
Trout · GraylingSubsurface
Slim dark stonefly nymph of early-spring fast water; dead-drift deep before the black stones crawl ashore.
Fish this when
In late winter and early spring on fast, cold freestone water, dead-drifted deep along the bottom before the black stoneflies migrate to the bank to crawl out and hatch.
Why it works
Its slim dark silhouette matches one of the only naturals actually moving in cold late-winter water, so a fish with almost nothing else to key on treats every black stonefly nymph in the drift, real or fake, as worth eating.
Naturals it imitates
early black stonefly nymph
Typical zone & fishable range
usually
Surface
Film
Subsurface
Deep
Setup sensitivity: medium
Quick facts
Tying difficulty
Beginner-friendly