Subarctic Darner female and nymph casing

Thanks to Susan, we were able to witness this female Subarctic Darner (Aeshna subarctica) with its disgarded nymph casing, when we were botanizing the Elkton Bog, near Cremona. Susan caught the last moment of it emerging, but the rest of us were able to see it resting and drying out before eventually flying off. I have a photo of just the casing that I will upload soon - quite amazing to see - almost looks like it's made of very thin copper.

"The Subarctic Darner is restricted to Sphagnum bogs and deep fens that are dominated by aquatic moss. The moss need not be Sphagnum and the water not necessarily very acidic; other aquatic mosses such as Drepanocladus and Scorpidium are more commonly associated with this dragonfly....Eggs are laid directly into floating moss." From www.royalbcmuseum.bc.ca.