I have two trico patterns that have worked very well on the Tully [Tulpehocken Creek, near Reading PA] this summer [probably 2003; these are old directions], and the first one is derived from a hint in the Trico article in a recent summer issue of Fly Fisherman. One of the contributors mentioned a double wing pattern. I start the fly on a Varivas midge hook or Tiemco 2488 (a 22 ties a 26 trico, a 24 ties a 28, etc) in a traditional manner: I tie the tails with micro fibbets and the abdomen with thread--black or white 8/0 unithread. [I've quit using tails on Tricos, from a hint on the Little Lehigh Fly Shop website. It has a deadly Trico pattern--and very hard to see on the water, I'd add] I had a devil of a time figuring out the double wing idea, but learned to tie a small sparse bunch of hi-vis on the top of the hook, parallel to the shank, with one wrap over the middle of the bunch, then one wrap just in front of (i.e. under) the high vis (like wraps to stand up a comparadun wing) and then one in back (again, under the high vis at the base), then split the back tips (the ones pointing toward the tail) and figure eight into a standard spinner wing. The front bunch is then stood up and splayed comparadun style. I take some black superfine and build a thorax behind and in front of the double wing, sometimes with a wrap or two of dubbing in between the two wings. I then tie off and trim them by holding all the high vis fibers straight up and trimming a mayfly shape to the wing--a bit taller in front, shorter in back. Next I pull fibers down to get some of them them perpindicular to the shank and parallel to the water's surface. the final fly has kind of a rough hemisphere of high vis above the water's surface when fished, but just a few fibers on the water's surface. It's very visible, and fools fish that won't take a traditional spinner. I sometimes tie in two strands of crystal flash, one on either side of the shank, with the same one wrap over, one wrap in front then one behind, to make a base for the high vis, the high vis is then tied as above, but over the crystal flash, which stays (to some degree, most of the time, at least, on the bottom of the wing). It's a pain, and requires a magnifier, but it gives the fish something new to ponder. My newest tie, and one that has taken some very picky fish, is similar, but I use a bunch of white CDC with a very few thin strands of pearl blue angel hair or ice dub mixed in. I can't remember if I try to figure eight the back bunch or if I just stand it up CDC style.
"He spread them a yard and a half. 'And every one that got away is this big.'"
--Fred Chappell