Country diary: It’s a painted lady summer, the stuff of lepidopterists’ legend | Phil Gates

The painted lady butterfly (Vanessa cardui) has arrived in unprecedented numbers this summer, marking a significant event for lepidopterists. Sightings began in mid-April in Wales and Cumbria, with the first individuals appearing in Weardale by mid-May. The current abundance is described as a "painted lady summer," a phenomenon considered legendary among butterfly enthusiasts. These butterflies are known for their extensive multigenerational migrations, traveling thousands of miles. Their presence is often compared to the anticipation of the first swallows, signaling the arrival of warmer seasons and migratory patterns. The worn condition of some butterflies observed suggests they have completed long journeys. Their camouflage allows them to blend with their surroundings, making them difficult to spot until they take flight. The species is currently nectaring on common wildflowers like dandelions, indicating a readily available food source during their stay.