Here is the fly pattern sheet for the Krystal Flash Mayfly Nymph – Seitz variation. He ties the fly to imitate BWO and PMD nymphs on the Crooked River, OR.
Materials
Hook:
Standard #16 – 18 nymph hook
Bead:
Gold or copper – 2.3 mm for #16, 2.0 mm for #18
Thread:
Black 8/0 Uni
Tail:
Black Krystal Flash
Rib:
Small gold or fluorescent orange wire
Body:
Black Krystal Flash
Thorax & legs:
Black Krystal Flash
Collar:
Fluorescent orange 8/0 Ultra thread
Directions
- Debarb hook and slide on bead.
- Attach thread and wrap to hook barb.
- Cut 4 pieces of Krystal Flash 3″ long and attach to hook above barb, creating tail about 1/4″ long. Use 3 turns of thread to secure and an additional 3 turns immediately in front of material to firmly secure.
- Hold Krystal Flash up and wrap thread only to hook eye, creating a slight taper as thread is wrapped forward.
- Wrap the 4 strands of Krystal Flash forward to make body and tie off at eye.
- Separate Krystal Flash and use 2 strands for legs on each side of body. Use thread to secure in place.
- Whip finish and trim thread.
- Coat body with UV resin.
Options
- Add wire rib or use fluorescent orange thread for hot spot.
- Substitute red Krystal Flash for black.