Damsel fly nymph with yellow belly. This is a deadly pattern when there is decent day light or when it is cloudy day. The trouts are addicted to the taste of damsel flies and cannot resist eating these swimming nymphs.
They can be fished like a woolly bugger or any stream, or just leave it drift downstream.
These are weighted with the beadhead and comes in size 14 long hook (1 inch length)
A set comes in 3.