Who is Arthur Beauchamp from Collected Stories and what is their importance? Collected-Stories English & Literature Arthur Beauchamp | Collected Stories

Arthur Beauchamp is a mild-mannered butterfly collector who is persuaded by his wife, Pamela, to rig up a microphone in their guest room so they can eavesdrop on their weekend guests. They hear the couple fighting over how they lost a card game to their hosts. As the guests go over their catalogue of tricks to relieve the Beauchamps of their money, Pamela and Arthur listen intently and learn all of their tricks so they can't be duped again.