I knew that I was about to lose consciousness completely as I suffocated. Desperately, I mustered up my last reserve of energy. Pointing my wand away from myself into the deadly folds of the creature, summoning the memory of the day I had been voted President of the local Gobstones Club, I performed the Patronus Charm. Almost at once I felt fresh air upon my face. I looked up to see that deathly shadow being thrown into the air upon the horns of my Patronus. It flew across the room and slithered swiftly out of sight.
-- Flavius Belby surviving a Lethifold attack (FB)
Survived a Lethifold attack while in Papua New Guinea in 1782. He wrote about the experience, revealing for the first time the existence of this terrible creature and also the fact that a Patronus Charm will drive a Lethifold away. Belby had at one time been voted the president of the local Gobstones Club (FB). He appears on a Famous Wizard card (FW).
Possibly related to Damocles Belby and his brother, father of Ravenclaw student Marcus Belby, a member of the Slug Club.
Survived a Lethifold attack and lived to tell about it.