Saturday, July 17, 2021

Blue Dasher

Erika and I photographed a lot of Blue Dashers on 11 July 2021 at the Darlin Creek Preserve south of Olympia. I had trouble identifying this one. I first thought it was a Western Pondhawk, which has a blue thorax and abdomen. When I posted this photo in a dragonfly Facebook page, readers quickly pointed out that pondhawks have green faces, not whites one. They also lack the amber color at the base of the hind wings. Apparently as they age, especially western, male Blue Dashers become more solidly blue. Usually the species sports conspicuous lateral thorax stripes, like this male we photographed nearby. Blue Dashers are found across most of the United States and southern Canada and northern Mexico. There are, however, relatively few records from North Dakota, Montana, and Wyoming.

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