Posts Tagged ‘18SEP2019’

Final Fine-lined Emerald

October 7, 2019

Several Fine-lined Emerald dragonflies (Somatochlora filosa) were spotted during a photowalk with Michael Powell at Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. At least six S. filosa were spotted along two dirt/gravel roads at the refuge; this is the last one we saw.

This individual is a male, as indicated by his “indented” hind wings and terminal appendages.

Decisions, decisions!

I shot 37 photographs of the following dragonfly perched in several places: two photos are out of focus; most of the rest are flawed in some way (in my opinion), for example I don’t like the background, or the composition, etc.

As it turns out, the last group of photos is my favorite. Within that group, I selected a subset of three photos that I like. Although the photos are similar, they are subtly different. I think one of the images is the clear winner, but I suffer from decision paralysis sometimes. The photos are shown in the order in which they were taken. Which one is your favorite?

No.1

No. 2

No. 3

Sidestory

I think I might have figured out the habitat/breeding habitat for Fine-lined Emerald dragonflies. As Mike Powell and I were walking along one of several roads at Occoquan Bay NWR that lead to hotspots for hunting Fine-lined Emerald, I noticed shallow pools of “black water” in the forest, beginning about halfway down one of the dirt/gravel roads at the park. I mentioned to Mike that I think the black water pools are habitat for S. filosa.

Sure enough, that’s exactly where we spotted the male featured in this post — the last one we saw as we were walking back to Mike’s car. It’s worth noting we have never seen a Fine-lined Emerald that far from the main hotspots. Mike saw several more S. filosa in the same area a few days later. Hey, I might be onto something!

Copyright © 2019 Walter Sanford. All rights reserved.

Yet another male Fine-lined Emerald

September 30, 2019

The following images show the third Fine-lined Emerald dragonfly (Somatochlora filosa) that I photographed during a photowalk on 18 September 2019 at Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

This individual is a male, as indicated by his “indented” hind wings and terminal appendages. The following photo shows both field marks clearly.

Personality

Do dragonflies have personality? Who knows? I’ll say this: Some individuals within the same species seem to behave in ways that are distinctly observable and slightly atypical.

For example, this guy was hyperactive. He flew from perch-to-perch as though he were searching for the perfect perch. After brief stops at several spots, he disappeared into the tree canopy.

Before Mike Powell and I spotted the male featured in this post, we watched another male patrol back-and-forth between us for more than 30 minutes without landing! Mike and I were standing along a dirt/gravel road, about 20-30 yards apart. We had a lot of fun “redirecting” the dragonfly in the opposite direction toward each other. Several times the dragonfly “pulled up” in front of me and appeared to be thinking about landing on my head, but we were never so lucky. Eventually, the male must have tired of the game because he simply vanished!

Perhaps I’m guilty of personification of dragonflies, but I think they have lots of personality!

Copyright © 2019 Walter Sanford. All rights reserved.

Another male Fine-lined Emerald

September 25, 2019

The following gallery shows the second Fine-lined Emerald dragonfly (Somatochlora filosa) that I photographed during a photowalk on 18 September 2019 at Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

This individual is a male, as indicated by his “indented” hind wings and terminal appendages. The following photo shows both field marks clearly.

Male Fine-lined Emerald dragonflies typically patrol back-and-forth along relatively short segments, about waist high; in this case, they were patrolling along dirt/gravel roads in the forest. They perch about head high on tall grasses or bare tree branches.

Copyright © 2019 Walter Sanford. All rights reserved.

Fine-lined Emerald dragonfly (male)

September 20, 2019

A Fine-lined Emerald dragonfly (Somatochlora filosa) was spotted during a photowalk at Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA. Several specimens were spotted along two dirt/gravel roads at the refuge; this is the first one I saw.

This individual is a male, as indicated by his “indented” hind wings and terminal appendages.

Adult Flight Period

According to records for the Commonwealth of Virginia maintained by Dr. Steve Roble, Staff Zoologist at the Virginia Department of Conservation and Recreation, Division of Natural Heritage, the adult flight period for S. filosa is from July 10 to October 15. The species is classified as rare to uncommon. Its habitat is “boggy streams, swamps, and marshes.”

Bear in mind, Dr. Roble’s records are for the entire state, therefore the adult flight period for S. filosa seems to be longer than it is in reality. The adult flight period for a single site is probably shorter. For example, according to records for Northern Virginia maintained by Kevin Munroe, former manager of Huntley Meadows Park, the adult flight period for Fine-lined Emerald is August 23 to October 04.

Rare to Uncommon

A distribution map of official records for Fine-lined Emerald helps to illustrate its classification as a rare to uncommon species of odonate.

Source Credit: Abbott, J.C. 2006-2019. OdonataCentral: An online resource for the distribution and identification of Odonata. Available at http://www.odonatacentral.org. (Accessed: September 19, 2019).

Key: blue dots = Dot Map Project; green dots = Accepted records; yellow dots = Pending records.

Related Resource: Posts tagged ‘Fine-lined Emerald dragonfly’

Copyright © 2019 Walter Sanford. All rights reserved.


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