As a followup to the great veiled-body caddis patterns recently posted by William and Carl, here's one that finally achieves the effect I've looking for ... a green body veiled with a translucent "glow" and a dull gray wings/legs impression:
Hook: Mustad 94842, Size #16
Tying thread: Pearsall's Gossamer #20, light olive
Hackle: Waterhen undercovert
Body: Blend of 2/3 natural cream seal and 1/3 caddis green seal spun in Pearsall's #18 green silk

Some of the same morons who throw their trash around in National parks also vote. That alone would explain the state of American politics. ~ John Gierach, "Still Life with Brook Trout"