Black-veined whites, thought to have died out in 1920s, have seemingly returned due to warmer climate
When they last roamed England in 1925, they counted Winston Churchill as a fan. Now, black-veined whites – an extremely rare species of British butterfly – have been spotted fluttering once again.
Small numbers of the black and white insects have been spotted in fields and hedgerows in south-east London, nearly a century after the species was thought to have become extinct in the UK.
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