The Camelus Scud is a Gammarus imitation that uses an ostrich (Struthio camelus) herl to help for the legs of the fly. Gammarus is an amphipod crustacean genus in the family Gammaridae. It contains more than 200 described species spanning the globe. The Gammarus is the larger of the common scuds and I tie these in sizes 8 to 12. Hyalella is a smaller species and tied in the #14-18 range. Scuds are most available during the spring and fall and provide a decently sized nibble for hungry target fish like trout, grayling, perch, and panfish.
I tie the fly using lead strips tied on the top of the hook shank rather than wrapping it around the hook so that the fly keels over and rides hook up. This also helps with imitating the erratic swimming behavior of the little freshwater shrimp.
Camelus Scud fly pattern recipe
Hook: Mustad C49s #8-18
Thread: Dark Olive 6/0 (70 d)
Shellback: Olive Scudback 1/8”
Rib: Fine copper wire
Legs: Olive ostrich herl
Weight: 3 lead strips
Body: Diamond Dubbing Golden Brown
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