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very small caterpillar (1/32")

 
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frankw



Joined: 11 Nov 2014
Posts: 129
Location: Port Townsend,Washington, USA

PostPosted: Fri Dec 05, 2014 11:16 am    Post subject: very small caterpillar (1/32") Reply with quote

Greetings,
I found this little guy on the underside of some rotting Doug Fir bark. I thought he was dead, a victim of our recent freeze, but after a stack of 300 images, he very patiently woke up and walked away. If only all bugs were so patient! No idea what kind he is, and I am only assuming that he is a caterpillar...
Canon 6D, Canon 200mm, nikon plan 10X/0.25 infinity, stackshot, Zerene.

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abpho



Joined: 17 Aug 2011
Posts: 1413
Location: Earth

PostPosted: Fri Dec 05, 2014 12:07 pm    Post subject: Reply with quote

Nice work. Great image.
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canonian



Joined: 31 Aug 2010
Posts: 890
Location: Rotterdam, Netherlands

PostPosted: Fri Dec 05, 2014 4:32 pm    Post subject: Reply with quote

Not a caterpillar, shows more resemblance to some sort of lepisma, like the silverfish.
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Fred
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frankw



Joined: 11 Nov 2014
Posts: 129
Location: Port Townsend,Washington, USA

PostPosted: Sat Dec 06, 2014 6:30 pm    Post subject: very small caterpillar 1/32" Reply with quote

I just heard from a friend who showed the image to Jesse Eiben, an entomologist at UH, Hilo. According to Mr. Eiben, it's a Bristly Millipede,
Family Polyxenidae.
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rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 17420
Location: Richland, Washington State, USA

PostPosted: Sat Dec 06, 2014 6:55 pm    Post subject: Reply with quote

Quote:
it's a Bristly Millipede,
Family Polyxenidae.

Fascinating! Very Happy

I don't recall ever hearing about these beasts. Now that I know about them, of course Google can find lots of material.

Nicely shot, by the way. I'll bet the full resolution version has some wonderful detail in those scales. Any chance of seeing a crop?

--Rik
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canonian



Joined: 31 Aug 2010
Posts: 890
Location: Rotterdam, Netherlands

PostPosted: Sun Dec 07, 2014 2:17 am    Post subject: Reply with quote

Goes to show one must be careful ID-ing insects.
Never heard about it but seems to be quite common.
Here its nickname is 'penseeltje': paintbrush.
Very nice deep stack.
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Last edited by canonian on Sun Dec 07, 2014 10:44 am; edited 1 time in total
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frankw



Joined: 11 Nov 2014
Posts: 129
Location: Port Townsend,Washington, USA

PostPosted: Sun Dec 07, 2014 9:52 am    Post subject: very small caterpillar 1/32" Reply with quote

Thanks very much for looking and your comments. Here is a slightly different view of the same guy showing more detail in scales and face.
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Wim van Egmond



Joined: 15 Aug 2006
Posts: 825
Location: Berkel en Rodenrijs, the Netherlands

PostPosted: Mon Dec 08, 2014 12:48 am    Post subject: Reply with quote

It was in the forum before!

http://www.photomacrography.net/forum/viewtopic.php?t=21797&highlight=
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frankw



Joined: 11 Nov 2014
Posts: 129
Location: Port Townsend,Washington, USA

PostPosted: Mon Dec 08, 2014 9:18 am    Post subject: very small catepillar 1/32" Reply with quote

Hi Wim,
I had no idea! Thanks for showing these. It would seem that these little guys are found world wide. Here is a link to a fascinating article about them, and in particular, their defense mechanisms. Apparently, unlike most Millipedes with their chemical defenses, these guys have figured out how to use their spines as weapons, not unlike a porcupine!

http://www.pnas.org/content/93/20/10848.full.pdf
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ChrisR
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Joined: 14 Mar 2009
Posts: 6625
Location: Near London, UK

PostPosted: Mon Dec 08, 2014 10:23 am    Post subject: Reply with quote

Fascinating indeed. That "forehead" area looks partially transparent? The the electron micrograph subjects in the article will doubtless send the high-magnification stackers amongst us, off on a hunt for the beasts.

Exclamation Soon the streets will be littered with discarded pine trees...
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RogelioMoreno



Joined: 20 Nov 2009
Posts: 2953
Location: Panama

PostPosted: Tue Dec 09, 2014 8:44 am    Post subject: Reply with quote

Amazing specimen!

Rogelio
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Wim van Egmond



Joined: 15 Aug 2006
Posts: 825
Location: Berkel en Rodenrijs, the Netherlands

PostPosted: Tue Dec 09, 2014 12:29 pm    Post subject: Reply with quote

An interesting pdf article, Frank. The writer Thomas Eisner is a legend. I have his book For love of insects. Recommended read!

regards, Wim
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frankw



Joined: 11 Nov 2014
Posts: 129
Location: Port Townsend,Washington, USA

PostPosted: Tue Dec 09, 2014 12:57 pm    Post subject: very small catepillar 1/32" Reply with quote

Thanks for the recommendation Wim, I will look for it!
best,
Frank
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