<< Previous Next >>


Photo Information
Copyright: Chris Chafer (sandpiper2) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1906 W: 107 N: 4875] (16757)
Genre: Animals
Medium: Color
Date Taken: 2007-01-13
Categories: Insects
Camera: Canon Powershot S2-IS
Exposure: f/4, 1/500 seconds
Photo Version: Original Version
Theme(s): Invertebrates & Fungi of the Sydney region., Australian Dragonflies [view contributor(s)]
Date Submitted: 2007-04-25 7:55
Viewed: 3281
Points: 14
[Note Guidelines] Photographer's Note
This is an exuvia of the Blue Skimmer. The exuvia is the exoskeleton of dragonfly larvae, discarded by the adult during the final stage of metamorphosis.
The larval stage of a dragonfly’s life is entirely aquatic. Amazingly, dragonfly larvae have respiratory gills inside their rectal chamber and breathe through their anus. This also allows them to propel themselves through the water by forcing water through their anus under pressure. The longevity of dragonfly larvae varies considerably in Australian species. Some such as the Blue Skimmer finish an entire generation in three months. Other species that live in alpine areas can take up to two years to complete a generation. Most Australian species only live as adults for one to four months, though there are a few species that can survive as adults for up to six months.
An adult male Blue Skimmer can be seen (here) and a female Blue Skimmer can be seen (here)

Info source: Theischinger, G and Hawking, J. 2006. The Complete Field Guide to Dragonflies of Australia. CSIRO, Colingwood, Victoria (www.publish.csiro.au)

Argus, ramthakur, Luis52, JORAPAVI has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
ThreadThread Starter Messages Updated
To horia: hard to findsandpiper2 1 04-27 13:47
You must be logged in to start a discussion.

Critiques [Translate]

  • Great 
  • GLEM Gold Star Critiquer/Gold Star Workshop Editor [C: 540 W: 87 N: 750] (10)
  • [2007-04-25 10:10]

bonjour Chris,
une image pas très "vendeuse" mais l'instant est vraiment intéressant et essentiel. Belle composition sobre et nette.


Hello Chris,
A nice piece of exuvia. Wonderful to know how this Blue Skimmer completely change from one stage of life to the other. Very well done and tfs.

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2007-04-25 11:25]

Hello Chris.
In itself the Blue Skimmer exuvia is not that exciting, but the way you present it in this shot with its fine composition, sharpness, lighting and contrasting BG makes it fascinating and a joy to see.
TFS and best wishes, Ivan

Fantastic capture of this shell vacated by a dragonfly in the process of its metamorphosis, Chris.
I have yet to see one with my own eyes.
Well done and TFS.

  • Great 
  • Luis52 Gold Star Critiquer/Gold Note Writer [C: 1175 W: 8 N: 4240] (15809)
  • [2007-04-25 22:23]

Hola Chris. Siempre he admirado a los insectos, sobre todo aquellos que de alguna manera tienen posibilidades de Metamorfosis. Quien y cuando ordena este proceso? Saludos Luis52.

  • Great 
  • horia Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2158 W: 224 N: 4749] (16656)
  • [2007-04-27 8:09]
  • [+]

Hi Chris and really sorry for the delay.
I've been mostly out in the fild these past couple of days searching for some new animals :)

This is a splendid shot of this exuvia. I've been searching for some just yesterday, too, but i wasn't that lucky :)
The details here are excellent and the textures of that "hard-skin" are very ncely visible.
It's also great that you found it in such a "simple" place and that the BG isn't made of different other plants that would have interferes with the subject.

Bravo and TFS

Hola Chris,
Un buen momento el capturado, la composición y nitidez son sobresalientes. Saludos
José Ramón

Calibration Check