.......................  ......Fly Fishing Yellowstone National Park


New "Perfect Fly" Inch Worm

After several tries, we have finally got our "Perfect Fly" Inch Worm fly like we
want it. They are now in stock and can be ordered from the website. They come
in hook sizes from 10, 12, 14 and 16.

The inchworm, also called the spanworm, looper, and measuring worm, is the
larva stage of life for the moth. There are numerous species of them in
Yellowstone National Park.

Inchworms are a yellowish/green color. Most of them are green. At times the
worm like larvae will suspend several inches from limbs on a silk thread they
produce. They do this hanging act when they are ready to pupate. It is common
for them to fall into the water. In fact, if they are suspended over the water, they
are going to fall into the water.

A good time to try an inchworm pattern would be when you spot a few of them
hanging from tree limbs, especially during those times when a major hatch is not
underway, which is ninety percent of the time. If you have not seen any of
them on the banks it very unlikely there will be any in the water. That doesn't
mean you can't catch fish on the fly. You probably can even if there are no inch
worms simply because the fly also closely resembles other food such as Rock
Worms (free living caddis larvae) and some of the net-spinning caddis larvae.

The different species of inchworms pupate at different times of the year. You will
find them throughout the summer but heavy only at certain times. Once the trout
have seen them, it doesn't seem to matter if they are lots of them or not.

As with most terrestrials, in the larger streams you should fish the "Perfect Fly"
Inch Worm Fly near the banks concentrating on those with overhanging limbs of
trees and bushes. The fly can be fished with or without any added weight  A
very good method is to use a large fly such as a hopper as an indicator and fish
the inchworm larvae imitation below it at a depth depending upon the depth of
the water you are fishing. Not only is the large fly a good strike indicator, it may
also get some action from the trout.
Of course you can also use a strike indicator. We almost always fish the fly
without an indicator or a large dry fly tandem rig. You can detect the strike
simply by watching your line and leader. That is our preferred way of fishing the

You can order the "Perfect Fly" Inchworm by Clicking Here

Copyright 2009 James Marsh
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