This fly was originated by Pat Dorsey, and represents a midge pupae just before emergence. You would fish this under an indicator in stillwater for trout.
HOOK: Tiemco 2457 or 2488. Dai-Riki 135 or 125. Sizes number 16–24. Crimp barb.
BEAD: Spirit River Mercury clear glass. The directions clarify the type of bead names and sources. Spirit River Hi-Lite Glass Beads in silver-lined metallic, or transparent finishes. Waspish markets glass beads under the name Killer Caddis. Feed bead onto hook, up to eye.
NOTE: See chart for hook size to bead size:
THREAD: Black 8/0 or 70-denier Attach behind bead. Touching thread wraps to mid shank, then back to bead.
RIB: Silver wire, small or fine. Position wire behind bead, leaving an a tag and extending below the fly. Tie in wire, with touching wraps to about halfway back to mid shank. Slowly pull on wire until tag and slides underneath the tying thread. Continue wrapping wire to shank with touching wraps back to above barb.
BODY: Same thread. Touching wraps back to bead. Touching wraps back-and-forth from mid shank to bead, forming a tapered body. Leave thread hanging behind bead. Spiral wire forward in five wraps the last behind bead. Tie down wire and twist to cut wire short.
THOAORX/BEAD: Black super fine dubbing. Dub small thorax behind bead. Whip finish, cut thread short.
Posted on December 13th, 2025