GONZO on Sep 10, 2008September 10th, 2008, 8:31 am EDT
Hi Chris,
Welcome to the website and to the rewarding craft of fly-tying.
Fur (or a synthetic substitute or blend) is a fairly standard material for scud imitations. It is usually dubbed and picked out to suggest legs, although it can also be spun. Many patterns incorporate something to represent the translucent carapace (often some sort of plastic tied over the back) and a rib to suggest segmentation.
You can find the tying instructions for my favorite scud pattern by using the website search to locate the "Favorite flies" thread (third post, first page). You can also see a photo of the pattern on HackleHead (click on "Fly Tying Contests" in the Troutnut header).