Yesterday the fields at Huntley Meadows Park were abuzz with beautiful emerald-and-black dragonflies. As I walked through the grass, the Eastern Pondhawks (Erythemis simplicicollis) would fly up to about knee level and then settle back down on the ground or perch on some low hanging plants.
The dragonflies were a bit skittish and it was a bit of a challenge to get clear shots of them. Occasionally one of them would fly to a slightly higher perch and permit me to get a shot like the first one that separates the subject from the background. Long-time readers of this blog know that I will usually try to move it as close as I can and I was happy to get this close-up shot of an Eastern Pondhawk that lets you see some of the facets of its amazing compound eyes.
All of the Eastern Pondhawks had the same beautiful green coloration. Eventually the male Eastern Pondhawks will turn blue, but this early in the season the juvenile male have the same coloration as the females. How do you tell them apart? My fellow photographer and blogger Walter Sanford is an expert on this subject, but in this case even I can tell the difference by looking at the terminal appendages.
In the shot below, you can tell it is a male because the white cerci at the end of the abdomen are long and close together.
By contrast, the white cerci of the female are shorter and more widely spaced, as in the photo below.
That just about exhausts my knowledge of dragonfly anatomy. My focus is mostly on capturing their beauty, but it is amazing how much I learn along the way about these fascinating little creatures.
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