MINNEAPOLIS — Swimmer Michael Phelps and professional beach volleyball player Misty May-Treanor will appear on limited-edition Wheaties boxes in recognition of their gold-medal winning performances at the 2012 Summer Olympics in London. “Michael Phelps and Misty May-Treanor have inspired others to get out and achieve their own personal best,” said Jim Wilson, Wheaties marketing. “Wheaties is proud to honor them and to fuel athletes everywhere.” Mr. Phelps won the 100-meter butterfly and the 200-meter individual medley at the Olympics. Ms. May-Treanor and her partner Kerry Walsh-Jennings became the first beach volleyball players to win three gold medals.