Nymph
Pupa Pattern
Grannom's under-the-radar pupa
Trout · GraylingSubsurface
Generic ascending-pupa dressing; during the Grannom hatch this subsurface pupa typically out-fishes the adult.
Fish this when
During the early-spring Grannom hatch on UK and Irish rivers, when the air is full of adults but the actual takes are happening under the surface.
Why it works
Most Grannom pupae never make it through the film cleanly, so fish key on the struggling pupa below rather than the adult riding on top — which is exactly why a plain ascending pupa quietly outfishes the dry.
Naturals it imitates
ascending sedge pupa (generic / Grannom)
Typical zone & fishable range
usually
Surface
Film
Subsurface
Deep
Setup sensitivity: medium
Quick facts
Tying difficulty
Beginner-friendly