Get set for a painted lady summer: big year for orange butterflies in Britain

Migrant insects have been seen in large numbers along east coast thanks to heatwave and benign southerly windsIf you’ve spotted a pale orange butterfly dashing at frenetic pace through streets, fields or gardens, you’ve noticed the new migrants that will add colour to the summer in record-breaking numbers.What is expected to be the largest arrival of painted lady butterflies in Britain for 17 years is under way afte…