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Posts Tagged ‘male Uhler’s Sundragon’

It is getting late in the season for Uhler’s Sundragon dragonflies (Helocordulia uhleri), so I was particularly happy when I spotted several of them last week while I was exploring a creek in Prince William County. Uhler’s Sundragons appear in early April and their flight period lasts for only a month or so, so it is always a challenge to find them and photograph them for the season.

Both of the dragonflies in the photos are males, judging by the appendages at the tips of their abdomens and their indented hind wings. I think that they are two separate individuals, but cannot be sure, since I spotted them in the same general area.

Some of you may have noticed that I did not do postings on Saturday and Sunday. I try to do a posting every day and during the past year “missed” only four days. I spent this past weekend in the mountains of Virginia at a church retreat and disconnected myself from the internet during that time. I had a wonderful time and feel uplifted emotionally and spiritually. After all of the covid-related travel limitations of the past two years, it felt good to get away and break out of my normal routine.

Uhler's Sundragon

Uhler's Sundragon

© Michael Q. Powell. All rights reserved.

 

 

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When the dragonfly season first starts, I am content to get a record shot of each species, which is to say that I am looking primarily to document the species and am not all that concerned about the quality of the initial images or their artistic merits. After the first excitement dies down, I try to get better and better images and one of the things that I often try to do is to photograph males and females of each species.

How do you tell the gender of a dragonfly? In some dragonfly species, the mature males and females have different colors and are easy to tell apart. However, quite often immature males have the same coloration as the females, so color alone is rarely a reliable marker. I have found that the best way to determine the gender is to look at the tips of the abdomen (the “tail”)—I won’t go into the details of dragonfly anatomy, but suffice it to say that the males and females have different shapes in this area so they can fit together for mating.

Over the last two weeks I have had several encounters with Uhler’s Sundragon dragonflies (Helocordulia uhleri) and was able to get shots of both a male and a female. The dragonfly in the first image is a female. I can tell its gender by the shape of the “terminal appendages” and also by the curved shape of the hind wings where they join the body.

If you look closely at the second image, which is a shot of a male, you can see that the lower portion of the abdomen is slightly enlarged—the abdomen is more uniformly shaped with a female—and the shape of the tip of the abdomen is different. You might also notice that the shape of the hind wings is “indented” where they meet the body, unlike the smooth curves of the female.

With some species, you can find the males and the females in the same area, so it is not hard to get shots of both genders. However, with other species, the females hang out in separate areas and do not mingle with the males until the females decide it is time for mating, which forces me to search a much wider area to photograph males and females.

I apologize if I got a little “geeky” in this posting. I am a little obsessed with dragonflies and am endlessly fascinated by them, so it is easy for me to get a little lost in the details.

female Uhler's Sundragon

male Uhler's Sundragon

© Michael Q. Powell. All rights reserved.

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