Wooly Worm - Beadhead

The wooly worm is an
imitation of the fuzzy caterpillar known as a wooly worm but it is not commonly
used to match a hatch.  It can represent many different fish prey depending
on how you present it. 

There is something
about this fly pattern that encourages fish to take it.  This beadhead
version is especially productive bouncing along the bottom of riffles and
runs.