Fulling Mill Corixa (Water Boatman) Silver Paddles - Premium Wet Fly

It carries its own air supply, and that is what a trout sees

A water boatman traps a film of air against its body to breathe, which shows underwater as a bright silver bubble. Because that air runs out, the insect is forever swimming up to the surface to renew it and diving back down again, which puts it in front of fish at every depth rather than one. Match the movement: let the fly sink, then work it back in short fast bursts with pauses between. Best around weed beds through late summer and autumn.