Some time ago a solution to the visibility problem was suggested for spinner patterns. Tie the wings as a hackle, over sized for a dry of that size would usually require then trip the hackle flat below the hook shank. It occurs to me that the same could be done with an over sized Compara Dun type wing. In a recent edition of Fly Fishing and Fly Tying this idea was resurrected but the hackle trimmed flat above the hook shank, The fly would then float with the hook up.

For the tiny Trico spinners you could try tying the wings in the form of an over sized Compara Dun using the organza in place of deer hair. With such a small hook a good floatant should enable you to get the fly to float, and the wing make it more visible.

Another thought that might just add a little. Philip White observed the trout of the River Wye in Derbyshire has a a preference for Mayfly spinners with just one wing stuck in the surface. He started to tie his imitations with the wings at 90 degrees rather than 180 degrees. One wing falls onto the surface the other sticks up where you can see it. This observation was for Mayflies, Ephemera family, the other end of the scale from Tricos.

I have no experience that any of what I have suggested will help. Its an insect we don't have here, and I've never fished a hatch or fall of them. I'm simply passing on generic fly tying ideas I have come across over the years. Hope something in there helps.

Cheers,
A.