Learn/Fly Box/Spider/Indio
IN
Spider

Indio

Traditional spider fly
TroutSubsurface

A Spanish limestone pattern tied for selective trout on spate rivers where hatches are dramatic and fish have learned to be particular about what they'll eat.

Fish this when

Late summer and autumn on Spanish rivers, particularly Asturian limestone and spate rivers. Fish it on a long line when the water is dropping and fish are aggressive.

Why it works

Spanish rivers have earned their reputation for both intense hatches and educated trout. Patterns that work there tend to work anywhere because they solve a harder problem.

Naturals it imitates
March brown emerger, olive upright emerger
Typical zone & fishable range
usually
Surface
Film
Subsurface
Deep
Setup sensitivity: medium
Hook range#12–14
Quick facts
Tying difficulty
Intermediate
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