Wildlife lovers are being urged to help keep track of ‘comeback kid’ comma butterfly

Wildlife lovers are being urged to help chart the progress of comma butterflies, labelled the “comeback kid” after seeing populations soar 138% in 40 years.

At the turn of the 20th century, the “exquisite” comma, which has distinctive ragged wing edges, was restricted to a few counties in the Welsh borders and South East England, but has since become a butterfly success story.

Since the 1970s, it has spread north 250 miles throughout England, Wales and the Isle of Man into southern and eastern Scotland.