Posts Tagged ‘Family Libellulidae (Skimmers)’

Calico Pennant dragonfly (female)

September 9, 2019

A Calico Pennant dragonfly (Celithemis elisa) was observed during a photowalk with Michael Powell at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

This individual is a female, as indicated by her yellow abdomen and tan pterostigma. Gender identification based upon coloration alone is speculative at best, especially for this species of odonate. I was able to confirm the gender by looking at two other unpublished photos that show her terminal appendages.

Related Resource: Odonate Terminal Appendages — single-topic field guides for dragonflies and damselflies featuring both text and annotated photos.

Copyright © 2019 Walter Sanford. All rights reserved.

Advertisements

Calico Pennant dragonfly (male)

September 6, 2019

There’s a feeling I get
When I look to the west
And my spirit is crying for leaving.

A Calico Pennant dragonfly (Celithemis elisa) was observed during a photowalk with Michael Powell at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

This individual is a mature male, as indicated by his red coloration, the secondary genitalia (hamules) located on the underside of abdominal segments two-three (2-3), and terminal appendages.

Copyright © 2019 Walter Sanford. All rights reserved.

Slaty Skimmer dragonfly (mature male)

August 28, 2019

A Slaty Skimmer dragonfly (Libellula incesta) was spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

This individual is a mature male, as indicated by his dark coloration and terminal appendages.

16 AUG 2019 | Occoquan Bay NWR | Slaty Skimmer (mature male)

Habitat preference

Slaty Skimmer is a habitat generalist that can be found virtually anywhere there is water, such as a mid-size pond like Painted Turtle Pond.

This species is a true habitat generalist; only whitetails and pondhawks can be found in as many different habitat types. I’ve seen Slaties along river edges, sunny sections of woodland streams, ponds, lakes, swamps, old roads and flooded meadows. Dragonflies of summer, if you’re in any of these habitats June through September, you’re likely to come face to face with a Slaty Skimmer. Source Credit: Dragonflies of Northern Virginia, by Kevin Munroe.

Copyright © 2019 Walter Sanford. All rights reserved.

Widow Skimmer dragonfly (mature male)

August 23, 2019

A Widow Skimmer dragonfly (Libellula luctuosa) was spotted at Painted Turtle Pond, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

16 AUG 2019 | Occoquan Bay NWR | Widow Skimmer (mature male)

This individual is a mature male, as indicated by the white pruinescence on his thorax and abdomen, pattern of wing spots (contrast with female pattern of wing spots), and terminal appendages.

This male has mated many times, as indicated by the scratch marks on his abdomen.

Males that have mated often have marks on their abdomen where the female legs have scratched them. This is especially obvious in species in which males develop pruinosity, as the pruinosity on the mid-abdomen is scratched off, and the signs are visible at some distance. Source Credit: Paulson, Dennis (2011-12-19). Dragonflies and Damselflies of the East (Princeton Field Guides) (Kindle Locations 390-392). Princeton University Press. Kindle Edition.

Copyright © 2019 Walter Sanford. All rights reserved.

Common Whitetail (mature male)

August 21, 2019

Common Whitetail dragonfly (Plathemis lydia) was spotted near the Painted Turtle Pond Environmental Study AreaOccoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

This individual is a mature male, as indicated by the white coloration of his abdomen, pattern of wing spots, and terminal appendages. He is perched vertically on the corner of a storage shed.

16 AUG 2019 | Occoquan Bay NWR | Common Whitetail (mature male)

This male has mated many times, as indicated by the scratch marks on his abdomen.

Males that have mated often have marks on their abdomen where the female legs have scratched them. This is especially obvious in species in which males develop pruinosity, as the pruinosity on the mid-abdomen is scratched off, and the signs are visible at some distance. Source Credit: Paulson, Dennis (2011-12-19). Dragonflies and Damselflies of the East (Princeton Field Guides) (Kindle Locations 390-392). Princeton University Press. Kindle Edition.

Gear Talk

“Expose for the highlights” is a well-known rule of thumb in photography, that is, adjust the camera settings so the highlights are exposed perfectly.

Mature male Common Whitetail dragonflies are challenging to photograph because they prefer perching in direct sunlight, so it’s easy to blow out the highlights on their bright white abdomen. After a few test shots, I was able to adjust the flash power ratio so that the subject is exposed properly.

Copyright © 2019 Walter Sanford. All rights reserved.

Blown away!

August 19, 2019

A Common Whitetail dragonfly (Plathemis lydia) was spotted at the Painted Turtle Pond Environmental Study Area, Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

This individual is an immature male, as indicated by his brown coloration, pattern of wing spots, and terminal appendages.

Gear Talk

“Expose for the highlights” is a well-known rule of thumb in photography, that is, adjust the camera settings so the highlights are exposed perfectly.

The preceding photo was a test shot. The highlights are almost blown out completely because the flash power ratio was set too high for proper exposure of the scene; the dragonfly flew away before I could reduce the flash power.

All of that being said, there’s something about this image that I like. It reminds me of an old, faded black-and-white photo print. The word “sepia” comes to mind.

Related Resource: Common Whitetail dragonflies (young males, mature males)

Copyright © 2019 Walter Sanford. All rights reserved.

Shine on you crazy diamond!

July 22, 2019

Widow Skimmer dragonfly (Libellula luctuosa) was spotted along a small stream in the forest at an undisclosed location in Prince William County, Virginia USA.

21 JUN 2019 | PNC. Wm. County, VA | Widow Skimmer (immature male)

This individual is an immature male, as indicated by his coloration and terminal appendages.

Gear Talk

The preceding photo was challenging, exposure-wise — the ambient light spanned the entire range from light to dark. The problem was made worse by the behavior of the Widow Skimmer: the dragonfly didn’t sit still; it flitted from one perch to another so I felt rushed to “get a shot, any shot.”

The subject is slightly overexposed, most noticeably along the yellow line on top of the thorax. Using my new “set it and forget it” configuration for the Panasonic Lumix DMC-FZ300 superzoom digital camera, I’m still adjusting to the fact that exposure compensation isn’t an option when shooting in Manual Mode.

Related Resources

Copyright © 2019 Walter Sanford. All rights reserved.

Blue Corporal dragonfly (mature male)

July 19, 2019

I like to take some test shots/warm-up shots at the beginning of every photowalk, in order to check exposure, etc. and practice muscle memory. The idea is simple: Prepare to shoot before I see something rare to uncommon, as happened on 21 May 2019.

21 MAY 2019 | PNC. William County, VA | Blue Corporal (mature male)

A Blue Corporal dragonfly (Ladona deplanata) was spotted near a small pond at an undisclosed location in Prince William County, Virginia USA. This individual is a mature male, as indicated by its coloration and terminal appendages.

Copyright © 2019 Walter Sanford. All rights reserved.

Widow Skimmer (immature male)

July 12, 2019

A Widow Skimmer dragonfly (Libellula luctuosa) was spotted near a small pond at Occoquan Regional Park (ORP), Fairfax County, Virginia USA.

01 JUN 2019 | ORP | Widow Skimmer (immature male)

This individual is an immature male, as indicated by his coloration and terminal appendages. He is hunkered down in a hidey-hole, almost out of sight.

Copyright © 2019 Walter Sanford. All rights reserved.

Golden Boy

July 5, 2019

A Needham’s Skimmer dragonfly (Libellula needhami) was spotted at Occoquan Regional Park (ORP), Fairfax County, Virginia USA.

This individual is an immature male, as indicated by his coloration and terminal appendages. The yellowish-red coloration of this specimen could mislead you into thinking it’s a female. Be aware that the same species of dragonfly may appear differently depending upon gender, age, and natural variation.

At this stage in the male’s maturation, his coloration is similar to females of the same species. As a mature male, the front of his thorax and abdomen will be covered by red pruinescence.

Related Resource: Posts Tagged ‘Needham’s Skimmer dragonfly’

Copyright © 2019 Walter Sanford. All rights reserved.


%d bloggers like this: