Agrypnetes crassicornis (The Malham Sedge) A male is shown here.

This is a critically endangered Caddisfly which is only found in one lake in Britain,  Malham Tarn, North Yorkshire. Photographed by Sharon Flint on the Northern shore of the tarn on August 9th 2016. 

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StoneStoneflies, belonging to the Insect order Plecoptera, are so called because the adults of th

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Caddisflies or Trichoptera, (meaning, from the Greek trichos a hair and pteron a wing; hairy-wing

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