Found it on a UK site; very similar to [b]Corey’s Calftail[/b]
hook - Dai Riki 300 #10
thread - UTC 140 tan
tail - calf tail white
abdomen - dubbing ginger
wing - calf tail white
hackle - barred cream (called for dun, but I liked the look of the barred cream better)
Regards,
Scott