UKIP suffered defeat in the Brecon and Radnorshire by-election, finishing last behind the satirical Monster Raving Loony Party.
Their candidate Liz Phillips received 242 votes, compared to the 334 for Lady Lily the Pink from the Monster Raving Loony Party.
Lady Lily – real name Bernice Benton – runs a local guesthouse and said she hoped she had “engaged a few people who wouldn’t have normally voted to come out and vote in this election”.
“It’s been absolutely amazing campaigning. I’ve met loads of people, I’ve learnt loads and said loads,” she said.
Her slogan during the campaign was “if you don’t know what to think, vote Pink!” and during the vote count she wandered around the room handing out pink cupcakes and pink lady apples.
The satirical party - who placed fifth in the by-election, with UKIP in sixth place - said the result puts pressure on the BBC to invite it to attend Question Time for the first time in 40 years.
It tweeted: “In its 40-odd year history, BBC Question Time has never invites (sic) us Official Loony's on the show… their loss as viewing figures would go through the roof!”.
The Welsh seat was won by Liberal Democrat Jane Dodds, who comfortably pulled ahead of former Conservative MP Chris Davies.
It leaves Boris Johnson with the support of 319 MPs, while the opposition has 318.