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Endangered Spider Rediscovered on Isle of Wight After 40-Year Absence

Summary

  • Critically endangered spider last seen in UK in 1985 rediscovered
  • Researchers raced against the clock to find the "white-knuckled wolf spider"
  • Discovery hailed as a "major conservation success" by National Trust
Endangered Spider Rediscovered on Isle of Wight After 40-Year Absence

In a remarkable conservation achievement, a critically endangered spider that had not been seen in the UK for four decades has been rediscovered on the Isle of Wight. The tiny orange-legged arachnid, known as the Aulonia albimana, was last recorded in the country back in 1985.

The team that made the discovery, entomologist Mark Teller and colleague Graeme Lyons, have informally named the species the "white-knuckled wolf spider". This name was inspired by the distinctive pale "knuckles" on its palps - small leg-like appendages at the side of the mouth - as well as the researchers' race against the clock to find it.

Lyons recounts the thrilling moment, saying, "I found the first one with just nine minutes to go, and the second one in the last minute. I've seen 559 species of spider in the British Isles, and this one was by far the most exciting find." The team located the spider in a remote, overgrown area of the National Trust's Newtown National Nature Reserve, accessible only by boat.

The rediscovery of this "dapper little spider" has been hailed as a "major conservation success" by the National Trust, and a testament to the power of habitat management, curiosity, and collaboration in protecting endangered species.

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The "white-knuckled wolf spider" is the informal name given to the Aulonia albimana, a critically endangered spider that was rediscovered on the Isle of Wight in 2025 after not being seen in the UK for 40 years.
The "white-knuckled wolf spider" was found in a remote, overgrown area of the National Trust's Newtown National Nature Reserve on the Isle of Wight, accessible only by boat.
Researchers Mark Teller and Graeme Lyons raced against the clock, with just 4 hours to search the site where the spider was last seen 40 years ago. Lyons found the first spider with just 9 minutes to spare, and the second in the final minute, calling it the "most exciting find" of the 559 spider species he has seen in the UK.

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