Stonefly nymph skin

Stonefly nymph skin

Observation - Stonefly nymph skin - UK and Ireland. Description: There were several of these discarded skins between 15 and 30 cm above a small stream. Can anyone have a go at the species?

There were several of these discarded skins between 15 and 30 cm above a small stream. Can anyone have a go at the species?