Blue Dasher dragonfly (female, obelisking)

Seems like just yesterday Blue Dasher dragonflies (Pachydiplax longipennis) were everywhere. Now they’re nowhere to be found. (Heavy sigh.) It’s going to be a long winter!

This individual is a fresh-faced female, as indicated by her coloration and terminal appendages.

Some species of dragonflies, such as the Blue Dasher shown in this photo set, regulate their body temperature by perching in the “obelisk position”: the tip of the dragonfly’s abdomen is pointed toward the Sun, minimizing the surface area of the body exposed to direct heating by the Sun’s rays, thereby avoiding overheating.

Copyright © 2015 Walter Sanford. All rights reserved.

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