Tuesday, August 12, 2014

American Rubyspot

At Panther Junction in the Big Bend National Park, on 25 Febraury 2014, Erika and I walked to the edge of the Rio Grande. There we found a dozen American Rubyspots, damselflies with which I was well familiar from Northfield. I am surprised that a tiny odonate would enjoy such a wide range. Not only is this species found in the United States from coast to coast, it is also found south to Nicaragua. You might think that local populations of such a wide ranging species might differentiate into distinct species. They are, nevertheless, generally common along clear, running streams, with rubyspots in the western United States also favoring slower, muddy rivers (Paulson 2012).

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