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Diptera.info :: Identification queries :: Other insects, spiders, etc.
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Aphid query
LordV
#1 Print Post
Posted on 02-10-2005 06:57
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Hoping someone here maybe able to answer this. I took a pic of this flying aphid yesterday walking across my car roof. I'ts about 4mm long.
Much to my suprise the sugar drop exhaust pipes appear to originate at the top of the abdomen (near the thorax) rather than just straight out of the abdomen about 2/3rds down from the thorax. Does anyone know if this is just an illusion?
Any specific ID appreciated to.
Thanks BrianV.

www.diptera.info/forim/6-0786-1.jpg
Edited by LordV on 02-10-2005 10:26
 
pierred
#2 Print Post
Posted on 03-10-2005 06:01
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Location: Paris (France)
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Hello,

I'm not a specialist, but the cornicles are not the organ to excret honeydew. Aphids use the rectum for that. The cornicles are used to excret alarm pheromones and other defense means.

See for instance:
http://pubs.nrc-c...f_cjz12-02
Pierre Duhem
 
LordV
#3 Print Post
Posted on 03-10-2005 06:59
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Thanks for the correction- shows how much I know about them Wink
I'll have to try attacking the next one first before taking a pic Smile
Brian V.
Edited by LordV on 03-10-2005 07:13
 
Paul Beuk
#4 Print Post
Posted on 03-10-2005 07:49
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The siphuncili are placed just beyond the middle of the abdomen. That is found in at least some species of Aphididae - Mascrosiphini.
Paul

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Paul Beuk on https://diptera.info
 
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