Originator: Danie Erasmus
Hook: #16 TMC 2587
Thread: 8/0 olive
Bead: 5/64 gold
Tail: Olive Hungarian partridge
Abdomen: Light olive dry fly dubbing
Ribbing: Small chartreuse wire
Thorax: 0.015 lead wire blue wing olive dubbing
Legs: Olive Hungarian Partridge
Wingcase: Black holographic tinsel
This BWO pattern does not imitate a specific Genus or species but rather imitate several Genera of the Beatidae family of mayflies, including: Beatis, Diphetor and Fallceon.
BWO hatches are most intense during the first part of June in the Prince George area.