As it flutters over boggy grassland or along a damp woodland ride, this butterfly is easily mistaken for the ‘cabbage whites’ – large and small. But at rest the differences become clear. Its underwings are smudged with green veins, an illusion produced by a combination of yellow and black scales. This is also one of the few butterflies we can smell. To tempt females to mate, the male releases perfumed scales, which naturalist Peter Marren memorably called “lemonscented love dust”.
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