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Post by laurie1 on Sept 11, 2012 15:52:45 GMT -8
Here is what UV light exposure does! Attachments:
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Post by Zacatak on Sept 11, 2012 15:56:45 GMT -8
thanks for posting laurie, that looks quite strange. your not the laurie that lives close to me are you?
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Post by wingedwishes on Sept 11, 2012 17:39:34 GMT -8
Great example Laurie.
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Post by laurie1 on Sept 11, 2012 22:49:26 GMT -8
Hey Mate! Where are you in NZ??
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Post by simosg on Sept 12, 2012 9:53:06 GMT -8
And see, Laurie's example also has a bleached abdomen.
Hannes
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Post by indowings on Sept 12, 2012 14:02:49 GMT -8
Hi Laurie,
do you know who produced the specimen in the photo you posted?
D.
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Post by laurie1 on Sept 12, 2012 18:30:45 GMT -8
Hi David
A fellow in Japan (a friend of a friend).
Cheers
L
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Post by daffodildeb on Sept 13, 2012 10:23:12 GMT -8
So, are you saying that the blue in O. P. urvillianus is fake, even in papered specimens not known to have been previously spread? Even though it's blotchy, and apparently related to water in some way? Doesn't make sense to me. Hi Deb, No, as Hannes has said urvillianus is naturally blue. What the topic has gone to is how it is apparently possible to fake blue examples of other Ornithoptera species... In terms of the blotching, and I don't know for sure, I'm not sure that I'd recommend liberally applying liquid to the wings. Just a guess, 'cos I've never done (I normally do mine in a relaxing box followed by a quick injection of boiling water), but I suppose this could be the cause. When I was starting out doing this I found that if I left my Ornithoptera in the relaxer for too long they'd go blotchy...and that was due to humidity rather than liquid applied directly to the wings...  I rewetted the wings only because I figured water started the problem, and perhaps additional water would even out the blotchyness. I had nothing to lose--you're seeing the "after" pictures. The original wings looked worse. Normally I inject boiling water, then put them in the box for a day or two. I suspect gravity made the blotches appear on one side more than the other, but the wings weren't intentionally exposed to a lot of water. |
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Post by simosg on Sept 13, 2012 10:54:46 GMT -8
I also inject boiling water and do them in a relaxing box, but only for some hours. Probably you have it to long in the relaxing box? But anyway, when I had Ornithoptera to long in the box, the stains where brown.
Hannes
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Post by wingedwishes on Sept 13, 2012 18:42:29 GMT -8
Are you using tap water or R/O water?
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Post by lordpandarus on Sept 13, 2012 19:51:33 GMT -8
Can one of you oracles of wisdom tell me how to prevent discoloration in birdwings? I'm referring to the patchy color change in species such as Ornithoptera priamus urvillianus, where the blue is sometimes splotched with a lighter turquoise. I've also seen it in the green priamus species. I use no chemicals, just water, when I rehydrate. These are perfect specimens other than that.  How can I prevent it? Can anything be done to correct it? I use the same technique as other butterflies to relax birdwings. Place in between damp (but well wrung) paper towels in a sealed Tupperware for 48 hours (in some cases it can be shorter or longer). The room should be warm (24-25 degrees C) but never place the relaxing box over a direct heat source The towels actually touching the wings prevents the formation of larger condensation droplets on the wings. These larger droplets are IMO the cause of water staining. Also turn over the specimens a few times during the relaxing process and blot out any extra condensation on the wings normally on green birdwings the wings turn all brown but return to normal color when dried again. I don't do many birdwings but the ones I've spread haven't stained I have never injected a specimen of any butterfly with water but for stubborn specimens that won't relax, I will carefully dip the thorax in boiling water at the END of the relaxing process (DO NOT touch the wings) |
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Post by simosg on Sept 14, 2012 9:39:51 GMT -8
I'm using tap water.
Hannes
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Post by dertodesking on Sept 14, 2012 11:18:13 GMT -8
Just ordinary tap water for me too...
Simon
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Post by daffodildeb on Sept 14, 2012 13:17:36 GMT -8
I use plain tap water on birdwings. I've seen brown staining, but as has been mentioned, it disappears when the wings dry. The blue color changes, though, are permanent.
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Post by lordpandarus on Sept 17, 2012 16:57:59 GMT -8
Here is what UV light exposure does! you can make priamus into fake aesacus |
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