.... I knew down in SE Idaho ( BB member gbflytier ) used and promoted Tyvek ( the white building wrap ) itself for wings on hoppers and stoneflies and such.

I saw a number of flies that Gary incorporated it in, and they were pretty neat. To the point that I actually acquired a couple square feet of the stuff from a local builder at his job site. Unfortunately, I never got around to using it in flies, so I can't speak from personal experience.

Tyvek, according to Gary, takes marking pen quite nicely. So you can pretty much control ( depending on your color perception and artistic ability ) what kind of wings you put on your critters.

John

P.S. Scott - it occurs to me that if Tyvek takes color really well, you could color the underside of the wings to the natural, and put a hi-vis color on at least part of the top of the wing for visibility, or even just leave part of the top white ??