Jersey Tiger Moths Surge Across UK in Surprising Comeback

According to the latest data from the Butterfly Conservation charity, the UK has witnessed a remarkable surge in sightings of the Jersey Tiger moth over the past year. As of early August 2025, the public has reported over 5,300 Jersey Tiger moth observations during the charity's annual butterfly count, a significant 78% increase from the total of 3,496 recorded in the entire 2024 count.

The Jersey Tiger moth, known for its distinctive black and white striped forewings and vibrant red-orange or yellow hindwings adorned with bold black spots, was previously largely restricted to the Channel Islands, the south coast of England, London, and south-east Wales. However, the warm and dry conditions experienced this summer have enabled the species to spread its wings and settle in new parts of the country, including as far north as the Midlands and as far west as Cardiff.

Experts believe the favorable weather has played a crucial role in the Jersey Tiger moth's rapid expansion, providing the ideal conditions for the species to thrive and establish itself in unexpected locations. This surge in sightings not only delights nature enthusiasts but also serves as a reminder of how climate change is reshaping the distribution of wildlife across the UK.

While the increase in Jersey Tiger moth numbers is a positive sign, conservationists warn that it does not undo the long-term declines faced by many butterfly and moth species in the UK. Over 80% of butterfly species have seen a decline since the 1970s, primarily due to habitat loss, climate change, and the use of pesticides. The Butterfly Conservation charity hopes that the public's participation in the annual butterfly count will continue to provide valuable data to inform national conservation strategies and protect these important pollinators and the ecosystems they support.