Posts Tagged ‘spiracles’

Painted Skimmer dragonfly (female, breathing and grooming)

June 2, 2015

The following movie features a Painted Skimmer dragonfly (Libellula semifasciata) spotted on 20 May 2015 during a photowalk alongside the wetlands at Huntley Meadows Park. This individual is a female, as indicated by its terminal appendages.

Dragonflies breathe through small holes in the underside of their thorax and abdomen called “spiracles.” Notice the dragonfly’s thorax and abdomen expanding and contracting as she inhales and exhales.

The female appears to be grooming while perching on vegetation, using her front legs to wipe her eyes and face. The author has observed many species of dragonflies engaged in similar behavior.

Tech Tips: The preceding movie looks better viewed in full-screen mode.

The video clips used to create this movie were shot on a very windy day. I used a tripod for my camera and centered the subject in each clip, but the wind caused the dragonfly to drift off-center at times. Not that I’m a perfectionist or anything.

Related Rescources:

Copyright © 2015 Walter Sanford. All rights reserved.

Advertisements

Autumn Meadowhawk dragonfly (female, breathing and grooming)

December 28, 2014

The following video features an Autumn Meadowhawk dragonfly (Sympetrum vicinum) spotted on 15 November 2013 during a photowalk along the boardwalk in the hemi-marsh at Huntley Meadows Park. This individual is a female, as indicated by its coloration and terminal appendages.

Dragonflies breathe through small holes in the underside of their thorax and abdomen called “spiracles.” Notice the dragonfly’s thorax and abdomen expanding and contracting as she inhales and exhales.

The female appears to be grooming while perching on the warm surface of the boardwalk, using her front legs to wipe her eyes and face. The author has observed many species of dragonflies engaged in similar behavior.

Tech Tip: The preceding video looks better viewed in full-screen mode.

Related Rescources:

Copyright © 2015 Walter Sanford. All rights reserved.

Common Whitetail dragonfly (male, breathing)

June 11, 2013

The following video features a Common Whitetail dragonfly (Plathemis lydia) spotted on 31 May 2013 during a photowalk along the boardwalk in the hemi-marsh at Huntley Meadows Park. This individual is a male, as indicated by its coloration and terminal appendages.

Dragonflies breathe through small holes in the underside of their thorax and abdomen called “spiracles.” Notice the dragonfly’s thorax and abdomen expanding and contracting as he inhales and exhales.

Related Resource: Autumn Meadowhawk dragonfly (female, breathing and grooming), featuring an embedded YouTube video (0:30).

Copyright © 2013 Walter Sanford. All rights reserved.


%d bloggers like this: