I was thrilled on Wednesday to photograph my first Common Sanddragon dragonfly (Progomphus obscurus) of the year as he was enjoying a sandy beach near Wickford Park in Alexandria, Virginia. Unlike most dragonflies that prefer to perch on vegetation, Common Sanddragons are usually found perched flat on the sunny, sandy sections of shallow creeks.
According to the Dragonflies of Northern Virginia website, “Despite its name, this species is rare in Northern VA. In other parts of the country, where clean, sunny, shallow creeks with plenty of sandy/gravely banks are common, so too are Common Sanddragons. Our urban waterways are too influenced by stormwater, flowing fast and unchecked off impervious surfaces (roads, parking lots, roofs, etc.). This creates deeply incised, eroded banks and streambeds, with excess silt, unstable flows.”
This species is special to me because I was the first person to document its presence at Huntley Meadows Park, a county-run marshland park where I used to do a lot of my photography before it became overcrowded with photographers. Check out my June 2014 blog posting New dragonfly species in the park for the details of how I stumbled upon this “new” species.
Common Sanddragons are also special to me because in June 2016 I was lucky enough to observe and document the thirty minute metamorphosis of a water-dwelling nymph into a Common Sanddragon dragonfly. I had been collecting some discarded exoskeletons of already emerged dragonflies on a sandy bank of a stream when suddenly I felt one moving in my hand. I quickly placed it on the sand and was able to photograph the dragonfly as it was emerging. It was a remarkable encounter and I encourage you to check out my blog posting Metamorphosis of a dragonfly.
Nothing quite that exciting happened during my most recent encounter. I was able to capture some images of the dragonfly on various parts of the “beach” where I initially spotted him. He was pretty skittish and flew away multiple times, but kept returning to the same general are of the creek, sometimes choosing the sandy areas and sometimes opting for the more rocky spots. I particularly like the first photo that has a mixture of rocks and sand and has some green algae that matches the stunning eyes of this Common Sanddragon.
© Michael Q. Powell. All rights reserved.