Times: The red admirals (Vanessa atalanta) that have taken up residence in Britain as a result of climate change are just the vanguard of an army of butterflies expected to invade, a study has shown. More than 60 species of butterfly have moved northwards or farther up mountains to escape the effects of climate change in Europe, and many are heading towards Britain. The movements are a foretaste of the widespread migrations that they will have to make over the next century to stand a …