Designed by Harrison Steeves, III
Hook: Tiemco 2487, #8-12. This model hook works better than a standard wide gape dry fly hook for this pattern. The curvature of the hook allows plenty of room between the body and the hook point.
Thread: 6/0, color of choice
Body: Kreinik Foam Tying Disc 1/2" in color of choice, Kreinik Foam Tying Disc 1/4" in yellow or orange
Underbody: Kreinik Medium Braid in color to match 1/2" Disc
Legs: Use either fine or medium round rubber leg material in colors to either match or contrast with the body color, or use Kreinik 1/8" Ribbon in (#850) Mallard to form wings.
1.) Wrap the hook shank with thread back to a point just behind the eye of the hook. Tie in a piece of Kreinik Medium Braid. Wrap the braid to a point even with the bend of the hook, and then wrap forward to where you tied the braid in. Tie off, cut excess.
2.) Place 1/2" foam disc on top of the hook shank with the front of the disc extending just over the eye of the hook. About one quarter of the disc should be extending forward from the point at which the tying thread is positioned on the hook shank. The forward extending portion of the foam will thus form the head of the beetle. The remainder extending toward the rear, will form the body of the beetle.
3.) Fold the foam disc evenly over the hook shank and tie it down. At this point you should have a good head and body formed. Give it another ten or twelve tight wraps of thread so the body will not turn on the hook shank.
4.) Tie in the 1/4" disc at the same spot as the 1/2" disc. This disc serves as your ez viz indicator. A small amount of super glue can be applied to the underside of the finished fly if your fly bodies turn, but tight thread wraps are usually all that is necessary.
5.) Legs or wings can be tied in on the sides of the body and trimmed to appropriate length. I usually tie this beetle with wings no longer or just slightly longer than the body of the beetle. Once the legs or wings are tied in, whip finish and remove thread.
This pattern is a modification of the original Disc O’ Beetle featured in "Terrestrials 101" written by Harrison Steeves, III in the Winter 1996 issue of Fly Fish America. The Disc O’ Beetle is also available from Umpqua Feather Merchants.