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A caterpillar's respiratory opening

A caterpillar's respiratory opening
Photo Information
Copyright: Peter Roos (batu) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1079 W: 293 N: 4497] (16383)
Genre: Animals
Medium: Color
Date Taken: 1991-09-10
Categories: Insects
Camera: Olympus OM2N, Olympus 20mm f/2.0 bellows lens, Kodachrome 25
Details: Tripod: Yes (Fill) Flash: Yes
Photo Version: Original Version
Theme(s): Fantastic macros! [view contributor(s)]
Date Submitted: 2006-09-25 12:11
Viewed: 4550
Points: 26
[Note Guidelines] Photographer's Note
A picture out of the pre-digital era:
- showing a highly magnified area of a caterpillar surface

The picture shows a part of an abdominal segment of a caterpillar including one stigma with a size of about 2 mm.
The species belongs to the genus Antheraea of the family Saturniidae.

Insects breath in their oxygen through so-called stigmata and also exchange their produced carbon dioxide through these openings. When you could get behind the opening, you will be in the interior of a network of branched trachea getting narrower and narrower and lead to all parts of an insect's body.

On caterpillars, stigmata are laterally located on the the first thorax segment, the prothorax, and on the abdominal segments. Usually the thorax stigmata and the last abdominal stigmata are a little bit larger than the others. The picture shows an abdominal stigma. Furthermore, different types of setae can be seen, some are clubbed, others are thin and end up in a fine tip.

A colleague of mine tried to breed several Saturniide moths and I took some pictures of detailed structures. This is one result.

In addition to the lens an Olympus auto-bellows was used.

Slide scanned with Reflecta Silver, 3200 dpi.

marmottelolo, horia, mogens-j, marhowie, manyee, Argus, Luis52, sily, sandpiper2, musin1002, mlines has marked this note useful
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ThreadThread Starter Messages Updated
To markula: Much experimentation ...batu 1 09-28 12:14
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Critiques [Translate]

Incredible macro shot!
Really detailed even if it's scansion from film.
Good colors and notes.

bonjour peter
il a fallut que je lise la note pour savoir de quoi il s'agissait,c'est vraiment de la grosse macro.
bien vu et merci de partager.

  • Great 
  • horia Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2158 W: 224 N: 4749] (16656)
  • [2006-09-25 13:17]

Hi Peter

Simply magnificent! WOW!!!
It's rare to see that much magnification on TN so this is a really great treat :)
The details and light are amazing considering the time and equipment that you used for the photo.
A really cool and informative note, too.

Bravo and TFS

Hello Peter

What an amazing picture you have posted here. Fantastic sharpness with very good details. An interesting shot which not many have seen. Also followed by a very good and educational note telling how insects breath. That is exactelly what TN is about.

Well done and thaks for sharing and telling.

Hallo Batu,
superb close-up,details and colors

Very interesting stuff Peter. This is a first on TN as far as caterpillar physiology goes :)
Excellent notes explaining what we're looking at and the "modus operandi". Interesting technique as well.
A great post,
Very well done.

  • Great 
  • manyee Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3089 W: 230 N: 6774] (23770)
  • [2006-09-26 2:41]

What an amazing and interesting shot, Peter.
An outstanding macro of something rarely seen by regular people like us.
Details are super crisp and well lit/
TFS.: )

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2006-09-26 13:11]

Hello Peter,
This is an excellent macro that could serve very well as an illustration for biology students!
TFS, regards, Ivan

  • Great 
  • Luis52 Gold Star Critiquer/Gold Note Writer [C: 1175 W: 8 N: 4240] (15809)
  • [2006-09-26 17:51]

Hola Peter. Exelente macro, solo atravez de la fotografia se puede apreciar estos pequeños orificios de las Orugas. Felicidades.

Hello Peter!
This is a heck of an impressive shot! I tried on a couple of occasions to shoot with a 50mm lens reversed on a 200mm lens. I gave it up because controlling the camera shake, light and framing at such magnification was extremely difficult and taking a decent shot required a lot of time. At least I could shoot as many frames as I wanted, which 15 years ago wasn't possible without additional expense (the film and processing). What you're showing here is not easily obtainable and, therefore, deserves our applause. Congratulations,

  • Great 
  • sily Gold Star Critiquer/Gold Note Writer [C: 239 W: 6 N: 395] (1934)
  • [2006-10-02 5:12]

Tag Peter!
Das photo ist mehr wie ein pop art poster, interesant und originel, Ich wuste nicht das ist wie ein insect lunge, danke, Ich habbe etwas neues gelernt heute!

Well done, impressive magnification and scanning of the slide film.
Good note; should be useful for the large numbers of school kids that visit this site looking for info.

Hi Peter,

I have no further comment, this is just great!
An excellent scientific macro shot....


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