Scud / ShrimpCarpet Bug
The Carpet Bug is a versatile crustacean imitation that effectively mimics both scuds and sowbugs. Taking inspiration from the Ray Charles pattern, this fly features rainbow scud dubbing with a holographic back that creates subtle flash without spooking wary fish. An excellent choice for limestone streams and tailwaters where freshwater crustaceans are a primary food source.
Year Round
Beginner
Trout
Overview
The Carpet Bug draws inspiration from the popular Ray Charles Sow Bug but adds holographic flash via the tinsel back. The fluorescent orange thread creates a subtle hot spot at the head that can trigger strikes. This pattern can be tied in various colors to match local naturals—gray, tan, olive, and pink are all effective options depending on your waters.
Pattern Characteristics
Materials
Hook: Tiemco TMC 3761, #10–#22
Thread: UTC Ultra Thread 70 denier, fluorescent orange
Body: Hareline Rainbow Scud Dubbing, light shade
Ribbing: UTC Ultra Wire, small, black
Back: Veevus Holographic Tinsel, medium, black
Fishing Tips
Season
Year round effectiveness, particularly productive during colder months when trout focus on subsurface food. Scuds and sowbugs remain active even in winter, making this a reliable cold-weather pattern.
Presentation
Dead drift along the bottom using a tight-line or indicator setup. Allow the fly to tumble naturally with the current. In stillwater, use a slow hand-twist retrieve near weed beds and structure.
When to Use
Most effective when trout are feeding subsurface and ignoring dry flies. Excellent searching pattern on overcast days or during non-hatch periods. Fish it whenever you suspect crustaceans are present.
Water Type
Highly effective in tailwaters and limestone streams where scuds and sowbugs thrive. Also productive in spring creeks and stillwater environments with aquatic vegetation.
Rigging Suggestions
Fish on 9–12 foot leader with 5X–6X tippet. Works well as a dropper below a heavier nymph or as the point fly in a two-nymph rig. Add split shot 12–18 inches above the fly in deeper water.
Visibility & Floatation
Sinks readily due to the wire ribbing. The holographic back provides subtle flash that attracts attention without appearing unnatural. Low profile design mimics the curved posture of natural crustaceans.
