There are many fly types. For trout anglers imitating aquatic insects,
however, there are four basic concepts of imitation. This is a term I first
encountered reading Dave Whitlock's Guide To Aquatic Trout Foods.
This book still stands as one of the clearest and most complete books of its
type for trout anglers.
The four concepts are:
-
Suggestive: the fly looks like food and is the approximate
shape of the bug.
-
Impressionistic: the fly is probably shaped about like the
bug but has little detail.
-
Realistic: the fly is similar to the bug, but has less
detail.
-
Exact: the fly looks like the bug.
What does this mean to those who fish? Well, put a fly in the right place
where a hungry trout is feeding and you have a chance. If you enjoy fishing
with more exact imitations, that's great.
What does it mean to fly tiers? Open the creative juices and decide how far
you want to go when tying fake bugs. From top to bottom on the list, the
flies take more skill and time to tie. Sometimes it is a good idea to spend
time tying tougher flies in order to learn technique. Then, when we tie more
basic patterns we can enjoy the process and tie them faster to fill our
boxes.
Losing flies that are expensive or take a long time to tie is tough on our
egos and pocket books. However, if we knew we could hook a lovely trout on
any fly, we'd probably tie it on and give it a try regardless the expense.
Here are four golden stonefly imitations. They go from Suggestive through
Exact - for me, that is. See the differences?