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Archive for July, 2018

Happy 4th of July! It is Independence Day here in the USA and in honor of this holiday I thought I’d post this shot of a patriotic Blue Dasher dragonfly (Pachydiplax longipennis) that was sporting a bit of red, white, and blue on its head this past Monday at Occoquan Bay National Wildlife Refuge. (Be sure to click on the image to see a higher resolution version of the dragonfly that shows the tiny hairs on its thorax (the torso) and its legs.)

Blue Dasher

© Michael Q. Powell. All rights reserved.

 

 

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Some of my readers know that I especially love dragonflies with patterned wings and one of my favorites is the Halloween Pennnant (Celithemis eponina). Despite its name, it is a summertime dragonfly and I was thrilled to spot a beautiful female Halloween Pennant yesterday at Occoquan Bay National Wildlife Refuge.

The “Halloween” part of its name comes from the orange-brown color of its wings. The “pennant” comes from this predisposition of members of this genus to perch on the very tip of vegetation, which causes them to wave back in forth in even the slightest breeze.

In the photo below, the Halloween Pennant is perched on a stalk of very distinctive Eastern gamagrass (Tripsacum dactyloides). I have frequently seen this kind of grass with red bits hanging from its stalks, but it was only yesterday that I learned what it was called from fellow dragonfly enthusiast Walter Sanford.

Halloween Pennant

© Michael Q. Powell. All rights reserved.

 

 

 

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It is easy to be so dazzled by the beauty and the aerial skills of dragonflies that you forget that they are also fearsome predators. I had a stark reminder of this grim reality on Friday when I encountered a Cobra Clubtail dragonfly (Gomphurus vastus) that had captured a Hackberry Emperor butterfly (Asterocampa celtis) at Riverbend Park. The dragonfly was starting to consume the butterfly and in the photo below almost appears to be suspended in mid-air.

In the past I have observed dragonflies with small butterflies, but this was the first time to see one with a larger butterfly. I really like butterflies and so I felt a mixture of horror and fascination when I stumbled upon this scene. Life in the wild can be brutal and today’s predators can become tomorrow’s prey—a fellow photographer posted a photo yesterday of a bird that had captured a dragonfly.

All in all, this moment served as a sober reminder to me of the fragility of life and of beauty. Somehow it brings to mind a country music song that I really like by Tim McGraw, a song that recommends that you live like you were dying. If you have not familiar with the song or simply want to hear it again, check out the official music video here on YouTube.

Cobra Clubtail

© Michael Q. Powell. All rights reserved.

 

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With the temperatures today reaching almost 100 degrees (38 C), I long for the cooler weather of autumn, my favorite season of the year. The aptly named Autumn Meadowhawk (Sympetrum vicinum) is generally one of the last surviving dragonfly species each year and I was therefore a bit surprised last week when I spotted this young female Autumn Meadowhawk. The very clear wings and pale body coloration are an indication that it had only recently emerged.

Summer, though, is the prime season for dragonflies and I hope to be able to take advantage of this season to see lots more of them. I’ll just have to make sure that I pace myself and stay well hydrated as we move through a period of exceptionally hot weather.

 

© Michael Q. Powell. All rights reserved.

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On Friday I kept encountering dragonflies that were clearly different from any I had seen before. There is a family of dragonflies known as “clubtails” in which the ends of their abdomens (the “tail”) are enlarged. I have seen a number of different members of this family, but none of them had as large a “club” as the ones that I spotted repeatedly as I explored Riverbend Park along the Potomac River.

I suspected and eventually was able to confirm that these are Cobra Clubtails (Gomphurus vastus). Isn’t that a cool name for a dragonfly—someone obviously thought that the “clubtail” looked like a cobra’s hood.

The Cobra Clubtails perched on the rocks and in the vegetation along the water’s edge and I was able to capture images of several of them. I am leading with a photo that provides a good look at the “clubtail,” though I tend to be drawn more to photos like final one in which you get to look into the eyes of the dragonfly.

This is probably the closest I want to be to staring into the eyes of a cobra.

 

Cobra Clubtail

Cobra Clubtail

Cobra Clubtail

© Michael Q. Powell. All rights reserved.

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