CW Callibaetis Upright Spinner #16

This BWO spinner in size #16 imitates spent blue-winged olive mayflies lying flat on the water.

Fish it dead-drift on flat water during spinner falls, when trout sip spent insects delicately.

A proven pattern that deserves a permanent place in your dry-fly box all season long. Restock before your next trip so you are ready the moment fish start rising.