Nymph
NZ Green Rock Worm Pupa
NZ caddis ascent pupa
Trout · GraylingSubsurface
Pupa of the free-living (caseless) caddis — taken hard on the ascent; fish it deep then lift through the feeding zone.
Fish this when
During a caddis emergence on clean, fast-flowing New Zealand rivers, fish it deep on a dead drift then lift it steadily through the last few feet before recasting.
Why it works
Hydrobiosis pupae are taken hardest mid-ascent, so the controlled lift through the water column puts the fly exactly where the natural is most exposed.
Naturals it imitates
ascending free-living caddis pupa
Typical zone & fishable range
usually
Surface
Film
Subsurface
Deep
Setup sensitivity: medium
Quick facts
Tying difficulty
Beginner-friendly