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Isogenus nubecula
Species of stonefly From Wikipedia, the free encyclopedia
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Isogenus nubecula, also known as scarce yellow sally, is a species of stonefly belonging to the family Perlodidae.[1] It is native to Europe.[1]
The insect was thought to be extinct in Britain, having last been recorded in 1995, but a small population was found on the River Dee, Wales in 2017.[2] In 2023, the insects were being bred in captivity at Chester Zoo with a view to reintroduction to the wild when water quality has improved.[3][4]
The species is regarded as critically endangered.[4]
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