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*Orange & Black*


*Orange & Black*
Photo Information
Copyright: Thorsten Buchen (thor68) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 715 W: 115 N: 1032] (4581)
Genre: Animals
Medium: Color
Date Taken: 2008-06-13
Categories: Insects
Camera: Canon EOS 40D, Sigma EX 105mm F2.8 DG Macro, SanDisk Ultra II 2GB, Hoya 58mm skylight
Exposure: f/13.0, 1/60 seconds
Details: (Fill) Flash: Yes
Photo Version: Original Version, Workshop
Date Submitted: 2008-06-15 1:27
Viewed: 461
Points: 26
[Note Guidelines] Photographer's Note
Last week I found a whole bunch of pretty caterpillars
in the garden at work, but I had no idea which species
this could be....now, with the help of my TN friends -
thank you all very much! - the ID:
larvae from the Cinnabar moth (Tyria jacobaeae)


A second photo can be seen in the WS-section.


Thanks & have a great sunday! :-)

**************************

The Cinnabar moth (Tyria jacobaeae)
is a brightly coloured arctiid moth, found in Europe and
western and central Asia. It has been introduced into
New Zealand, Australia and North America to control
poisonous ragwort, which its larvae feed on. The moth is
named after the red mineral cinnabar because of the red
patches on its predominantly black wings. Cinnabar
moths are about 20mm long and have a wingspan of 32-42
mm.

Cinnabar moths are day-flying insects. Like many other
brightly coloured moths, it is unpalatable; The larvae
use members of the genus Senecio as foodplants. Many
members of the genus have been recorded as foodplants
but for long term population success the presence of the
larger species such as ragwort is needed. Smaller plant
species such as groundsel are sometimes used but since
the species is lays its eggs in large batches survival
tends to be reduced. The larvae absorb bitter tasting
alkaloid substances from the foodplants, and assimilate
them, becoming unpalatable themselves. The bright
colours of both the larvae and the moths act as a
warning sign so that they are seldom eaten by predators.

Like several other Arctiidae moth larvae, the Cinnabar
caterpillars can turn cannibalistic. This can be due to
lack of food, but they can eat other Cinnabar larvae for
no apparent reason. Females lay up to 300 eggs, usually
in clusters of 30 to 60. Initially the larvae are pale
yellow but later larval stages develop the jet black and
orange/yellow striped colouring. They feed
ravenously and can grow up to 30mm. Cinnabar
caterpillars are voracious eaters and large populations
can strip entire patches of ragwort clean, a result of
their low predation.

Very few often survive to the pupae stage mainly due to
them completely consuming the food source before
reaching maturity, this could be a possible explanation
for their tendency to engage in seemingly random
cannibalistic behaviour, as many will die from
starvation.

[from: http://en.wikipedia.org/wiki/Cinnabar_moth]

**************************

Kameramodell Canon EOS 40D
Aufnahmedatum/-zeit 13.06.2008 14:16:10
Aufnahmemodus Manuelle Belichtung
Tv (Verschlusszeit) 1/60
Av (Blendenzahl) 13.0
Messmodus Mehrfeldmessung
Filmempfindlichkeit (ISO) 125
Objektiv 105mm
Brennweite 105.0 mm
Bildgröße 2592x3888
Bildqualität Fein
Blitz Ein
Blitztyp Eingebauter Blitz
Blitzbelichtungskorrektur 0
Verschlusssynchronisation Synchronisation auf den ersten Verschlussvorhang
Weißabgleich Automatisch
AF-Betriebsart Manuelle Fokussierung
Bildstil Landschaft
Schärfe 4
Kontrast 0
Farbsättigung 0
Farbton 0
Farbraum sRGB
Rauschreduzierung bei Langzeitbelichtung 1:Automatisch
High ISO Rauschreduzierung 1:Eingeschaltet
Tonwert Priorität 0:Ausgeschaltet
Dateigröße 2674 KB
Transportart Reihenaufnahme mit geringer Geschwindigkeit
eng55, Argus, mariki, aes_thor, sandpiper2, loot, Alex99, liziafa, oscarromulus has marked this note useful
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Critiques [Translate]

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2597 W: 133 N: 7441] (23193)
  • [2008-06-15 1:37]

Hello Thorsten,
A fine sharp capture of the caterpillars of the Cinnabar Moth, Tyria jacobaeae blonging to the Tiger Moth family (Arctiidae). The black and yellw colours warn that they are distasteful, even poisonous for birds to eat.
TFS,
Regards, Ivan

Hello Thorsten,

Excellent capture of these caterpillars. I like the composition. Very good sharpness and very good warm colours.
Cheers,
Mariki

  • Great 
  • batu Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1007 W: 285 N: 3322] (10976)
  • [2008-06-15 2:10]

Hallo Thorsten,
präzise scharfes Foto diesr Jakobskrautbär-Raupen.
Trotz des Blitzes halten sich die Reflexe in guten Grenzen.
Üblicherweise sind die Raupen mehr gelblich gezeichnet, nicht
so stark orange.
Beste Grüße, Peter

Hello Thorsten,
this is really good macro shot with perfect sharpness, details and colours. Caterpillars looks almost like alive.
TFS, cheers
Adrian

Hi Thorsten

Excellent capture of these vibrantly coloured catarpillars
Exellent composition
Great sharpness and DOF

Chris

  • Great 
  • loot Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5726 W: 605 N: 3416] (9131)
  • [2008-06-15 19:21]

Hi Thorsten

Lovely shot, spectacular colours, great sharpness, and I am chuffed that you received help with the ID.

You say you captured this in your garden and I just wonder how many caterpillars was left after the photo shoot. By the look of things they must have cleaned out that plant and probably some others as well. So, I just couldn't help but to think you probably called in the fumigation experts or you did a bit of pesticide fumigation all by your self (chuckle). It is one thing getting a nice photo, but it is a totally different story watching them eating up some priced or exotic plant.

Well done and TFS.
Regards
Loot

  • Great 
  • eng55 Gold Star Critiquer/Gold Note Writer [C: 353 W: 3 N: 376] (1127)
  • [2008-06-15 23:48]

Hi Thorsten,
Excellent close up.Exposure is spot on,focus couldn't be better.POV,colors,BG and lighting are also wonderful.
Thanks for posting.

  • Great 
  • Alex99 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3030 W: 148 N: 4521] (14603)
  • [2008-06-16 10:18]

Hi Thorsten.
I must say I am not huge admirer of caterpillars. However, shot is splendid. By the way I am also impressed with WS. First class close-up with terrific DOF, sharpness, details and rich wonderful colours. Bravo.
Alexei.

  • Great 
  • Mana Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 1714 W: 24 N: 4988] (16346)
  • [2008-06-17 9:55]

Hi Thorsten,
Wonderful macro shot of these great looking striped caterpilars with such lovely colours and details. They really look pretty. Great use of flash lighting and the DOF is precise here. Excellent POV and composition. Kudos.
TFS.
Sumon

Hi Thorsten,
Brrr... a lot of bugs.
Good close-up.
Excellent sharp and details.
Very well done!
Regards and TSF Malgosia

  • Great 
  • efsus Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 184 W: 13 N: 170] (1086)
  • [2008-07-27 23:31]

Merhaba Thorsten,
Çok enfes renkli ve ayrıntıları oldukça temiz müthiş bir kare. Eline sağlık. Yeni karelerde görüşmek dileği ile.
Hüseyin

Dear Thorsten,
OUTSTANDING, AMAZING, STUNNING.
Sharp, and detailed to PERFECTION even via your carefully written notes.
You are definitely one of the BEST artists on this site.
Warm & friendly greetings,
Mario from Canada.

Hi Thorsten,
Good to see you again my friend.Quite an amazing combination of colours you've caught here that certainly say "Stay Away" to predators.The details are crystal clear and you even get a sense of their slippery surface. Have a good trip to the states.....take care.
Regards, David

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