This is one of two Rhyacophila Caddis patterns I have tied for sbs?s to let you see two methods of tying them. See Rhyacophila(Dubbed) (http://www.wildfisher.co.uk/smf/index.php?topic=7447.0) for an alternative method of dressing.
Rhyacophila are a caseless caddis and among the easiest to imitate. Caddis are available to trout all year, so don?t underestimate their importance as a food item.
You can tie these in a range of sizes and colours to suit. I have used ?Flexibody? for the back, but you can use any similar clear plastic or even, simply, cut a strip from a clear plastic bag. For the body and thorax I have used ?Furry Foam? here, again substitute for what you have.
Instructions assume right-handed tyers
HOOK ? Partridge Czech Nymph #12
THREAD ? Black
WEIGHT ? Self Adhesive Lead Foil (two layers at the thorax)
RIB ? 3 or 4lb Nylon
BACK ? Flexibody
BODY ? Olive Furry Foam
THORAX ? Brown Furry Foam
STEP 1
Cut a strip of lead foil and wrap from the bend to near the eye, then take it back over the thorax area to give two layers on the thorax.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac.jpg)
STEP 2
Attach the thread and cover the lead foil.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-1.jpg)
STEP 3
Flatten the end of the nylon and tie in.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-2.jpg)
STEP 4
Cut a strip of Flexibody approximately 2 ? 3 mm wide, then cut it to a blunt point. It is best to leave the backing on the plastic until you are ready to tie it in.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-4.jpg)
Then remove the backing and tie in by the pointed end on top of the hook shank.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-5.jpg)
STEP 5
Cut a strip of Furry Foam approximately 2 ? 3 mm wide and tie in.. Furry foam has two sides glued together. You can cut it as one piece to give a fuller body, or as I have done here, you can pull the two sides apart and use only one side to give a slimmer body.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-6.jpg)
STEP 6
Wrap the foam to the thorax and tie off.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-7.jpg)
STEP 7
Tie in the darker strip of foam for the thorax.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-8.jpg)
Then wrap and tie off to form the thorax.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-9.jpg)
STEP 8
Pull the back over the top of the hook, ensuring that is stays on top. Then tie down at the head.
I tie the back down at the head then fold it back and wrap over again for added security.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-10.jpg)
STEP 9
Wrap the rib to the head to form the body segments and tie of at the head.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-11.jpg)
Again I fold the nylon back for added security.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-12.jpg)
STEP 10
Finally trim the waste, whipfinish and varnish for the completed fly.
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-13.jpg)
(http://i52.photobucket.com/albums/g8/scotfly/flies/FurryRhyac-14.jpg)