From Wildlife Extra:
On a visit last weekend Dick and Clare from Paws-a-While witnessed thousands of them.
The crews stationed there are suffering from rashes around their arms neck and legs, headaches vomiting and eye problems.
Normally found on the south coast (An Isle of [Wight] beach was closed in 1997) this is the first time the species has been found in this area.
Mat daisy moths of New Zealand: here.