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svalley
Joined: 03 Dec 2006
Posts: 220
Location: Albany, Oregon
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 Posted: Fri Jan 19, 2007 1:21 pm Post subject: Cerambicid Eye and Antennae Detail |
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Sorry, I do not have the species name for this Cerambicid. This poorly preserved specimen was found in a wine packing crate from France. We were worried that it might be a new invasive species, but it turned out to be a North American native that was accidently introduced to France and that had hitched a ride back home.
The diagnostic features I wanted to capture here were the setae between the facets of the eyes and the width to length ratio of the second antennal segment. The small round punctures on the lower portion of the eye are where setae have been lost.
Leica MZ16 stereomicroscope w/extended depth of field imaging system
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"You can't build a time machine without weird optics"
Steve Valley - Albany, Oregon |
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Ken Ramos
Joined: 27 Jul 2006
Posts: 6372
Location: Western North Carolina
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| Posted: Fri Jan 19, 2007 5:22 pm Post subject: |
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Interesting image Steve, what is the purpose of the setae between the facets of the eye? 
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Ken Ramos
Rutherford Co., Western North Carolina
"Social isolate?" |
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svalley
Joined: 03 Dec 2006
Posts: 220
Location: Albany, Oregon
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| Posted: Fri Jan 19, 2007 6:20 pm Post subject: |
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Ken, I don't know. These guys are woodborers and spend some of their life in the dark, so maybe they have a sensory function or maybe they function kind of like our eyelashes and and keep debris from sticking to the eye.
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"You can't build a time machine without weird optics"
Steve Valley - Albany, Oregon |
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Ken Ramos
Joined: 27 Jul 2006
Posts: 6372
Location: Western North Carolina
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| Posted: Fri Jan 19, 2007 6:28 pm Post subject: |
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The latter seems quite plausible there Steve, thanks
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Ken Ramos
Rutherford Co., Western North Carolina
"Social isolate?" |
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beetleman
Joined: 04 Aug 2006
Posts: 3578
Location: Southern New Hampshire USA
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| Posted: Sat Jan 20, 2007 6:20 am Post subject: |
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That is a wonderful image Steve. Lots of super detail in there  and very 3D looking. I always love the ball and socket look of the antennae.
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Take Nothing but Pictures--Leave Nothing but Footprints.
Doug Breda |
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