A caddis fly larva that is uncommon even in the good quality rivers of Hampshire and Sussex has been found in the Eastern Yar on the Isle of Wight.

It’s the first time that a larva of the Molannidae family has been found on the island and shows the river can be home to species that are highly sensitive to water quality.

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Image: 'Sleeping bag' caddis fly larva © Emma McSwan, Environment Agency