Gentlemen:
You miss my point. It is simply that the term ‘scud’ is applied to several different major groups of organisms that vary considerabley from one another and to the extent that it has lost it’s original meaning and it can leave one at a loss for what is actually being referred to; which can be important to tying an appropriate pattern to imitate the actual bug. An example is that if someone writes ‘trico’, many fly fishers will immediately have an accurate mental image of what is being talked about. The same holds true for Hexagenia, crayfish by any of it’s colloquial names, etc. This listing could go on ‘ad infinitum et ad nauseum’. If ‘scud’ refers to a gammarid, which is what I use the term for, I immediately think of a little bug that has a short body that is thinner from side-to-side than it is tall (laterally compressed). If you say ‘shrimp’, I think of an organism that rather closely resembles a miniature edible shrimp; long slender body and all. Each bug warrants it’s own pattern IMHO.
One does not need degrees in biology, or even a high school education for that matter, to learn to recognize members of each of the three groups I earlier mentioned. I reference my background, experience, etc., to emphasize the point that when someone with such a background is left cold relative to what is being talked about, you can imagine how frustrated others without such a background must feel. And I will confess that in spite of my degrees and my background, I feel very strongly that to learn the Latin names of all of the various mayflies, or caddis flies, etc., is a waste of time. However, as fly fishermen we have no problem mentally conjuring up images of what mayflies look like and recognize that caddis flies don’t look like mayflies. The differences between the groups I previously mentioned are on a par with the differences between mayflies and caddis flies.
My question then becomes; Why can’t we do the same for those bugs that are found in the aquatic bug wastebasket we call ‘scuds’? The groups have totally different physical attributes.
Jerry:
You hit my nail squarely on the head! I could not agree with you more. If we use the term “scud” to mean a gammarid, which is shown and discussed in the article in Kelly’s link, we all know what is actually being talked about and therefore what pattern we need to mimic it. (Incidentally, this is my concept of a scud.) The corollary is that if we use the term ‘shrimp’ for the mysids, we will have the same understanding. However, when both are collectively referred to as ‘scuds’, as many are inclined to do, the reader is left holding the bag: Pure, plain and simple.
Kevin:
I did not say you, or whoever, did not find them under rocks. What I said was that I have not found anything in the literature, etc., that indicates that they do occur under rocks. I will be the first to point out that not everything about the lives of all of these bugs is to be found in the literature. We have all observed things in nature that are not to be found in the literature.Therefore, I took the note at face value as being an accurate observation.
Cheers,
aged sage