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Moth eggs

 
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Charles Krebs



Joined: 01 Aug 2006
Posts: 5805
Location: Issaquah, WA USA

PostPosted: Fri Jul 20, 2007 12:34 pm    Post subject: Moth eggs Reply with quote

I can across some moth eggs on the underside of a morning glory leaf. While taking a few "macro" shots I was intrigued by the tiny caterpillars that could be seen within. I placed them on the microscope and took a few shots with a 4X. The top image is illuminated from above (using a fiber optic illuminator), and the second was fully "back lit" using the microscope brightfield condenser.




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Wolfgang Bettighofer



Joined: 11 Mar 2007
Posts: 58
Location: Kiel, Germany

PostPosted: Fri Jul 20, 2007 4:28 pm    Post subject: Re: Moth eggs Reply with quote

Hi Charles,

I don't know much about this creatures, but most of your shot go beyond the subjects. All the time you're creating artistry works! The brightfield ones looks like calligraphy. Thank's a lot, once more...

Wolfgang


Last edited by Wolfgang Bettighofer on Sun Jul 22, 2007 2:17 pm; edited 1 time in total
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rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 19784
Location: Richland, Washington State, USA

PostPosted: Fri Jul 20, 2007 6:11 pm    Post subject: Reply with quote

Lovely, simply lovely! Very Happy The lower image is stacked, I presume?

I think we're looking straight into the faces of little caterpillars that are just about ready to hatch. In the brightfield view, the sharp reddish features would be mandibles, the very dark blobs would simply be markings on the head capsule (symmetric left and right), and the sharp long lines would be various bristles and hairs on the face (again, notice the symmetry) as well as on the rest of the body, which would be curled up in a circle.

I love looking at these things through a dissecting scope.

Were they moving around at all for you?

--Rik
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Charles Krebs



Joined: 01 Aug 2006
Posts: 5805
Location: Issaquah, WA USA

PostPosted: Fri Jul 20, 2007 10:17 pm    Post subject: Reply with quote

Rik... you got the geometry just right!

Here's a tight crop showing how the mandibles appear.


They all moved about slightly, looked pretty cramped in there! Interesting in that the orientation (ie: "heads up") is the same in each egg... gives a little surreal look to the backlit version. One had already hatched when I took these, so I suspect when I check on them tomorrow I'll have a bunch on tiny caterpillars.
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discomorphella



Joined: 01 Oct 2006
Posts: 605
Location: NW USA

PostPosted: Fri Jul 20, 2007 11:07 pm    Post subject: Reply with quote

Hi Charlie---
That's incredible. You guys should all just get together and publish a biology textbook. I've seldom run across any photomicrographs that can even approach this level in any text. Did you get any shots of the hatching in progress?

--David
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Raul G



Joined: 18 Jul 2007
Posts: 79
Location: MEXICO CITY

PostPosted: Sun Jul 29, 2007 11:26 am    Post subject: Amazing Reply with quote

Amazing work Charles.
What I like the most is the contrast in the first image
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