Alternately:
Hook: Dai-Riki #060 or #135 (#060 if you're getting poor hookups on larger fish) #18
Bead: Nickel brass or metallic pink tungsten, 5/64".
Thread: MFC fluoro hot pink 8/0
Tail: Shell pink Antron.
Abdomen: metallic pink Flashabou doubled around the thread and secured, with both strands of flash wrapped together.
Rib: Red X-small Ultra Wire.
Wingcase: Abdomen tags.
Thorax: strawberry pink DK Dub (70/30 baby pink and hot pink acrylic yarn blended).
With the above recipe, now mostly on the #060 for better hookups albeit fewer strikes, that's my best fly on the Missouri River from late winter through about May 15. Always in #18.
Owner, Yellowstone Country Fly Fishing
Head Guide, Parks' Fly Shop
Fly Designer, Montana Fly Company
Author, Yellowstone Country Flies and River Characters