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Index of Subjects Hi NAncy, the exuvia is that of a Stream Cruiser, Didymops transversa. Many large species of dragonflies will crawl great distances across a flat surface until they find something upright that they can crawl up on. They need to be on a vertical surface in order for their wings to hang down and form correctly on emergence. It is usually a tree or bridge abuttment or even a large rock. I have often seen this species and its close relative Macromia illinoiensis on the side of a bridge piling twenty to forty feet up from the water. I would think eighty feet is probably getting near the limit. Jim Edsall Dartmouth, N.S. check out my website at http://www3.ns.sympatico.ca/jim.edsall/
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