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Diptera.info :: Family forums :: Syrphidae
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Which Chrysotoxum?
Steve Makin
#1 Print Post
Posted on 11-09-2008 11:28
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On the 1st of July by the edge of a field near Great Brickhill, buckinghamshire, England.

I was thinking Chrysotoxum cautum or maybe verralli.
 
Steve Makin
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Posted on 11-09-2008 11:32
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Maybe this time the photo will appear....
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Steve Makin
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Posted on 11-09-2008 11:34
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And another....
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Andre
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Posted on 11-09-2008 16:40
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cautum it is Smile
 
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Gerard Pennards
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Posted on 11-09-2008 20:01
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Nope, not cautum, on the second picture it's clearly visible that antennal segment 3 is shorter than segments 1 and 2 together.
So it's Chrysotoxum verralli indeed, which also fits better it's general shape and color!
greetings
Greetings,
Gerard Pennards
 
Steve Makin
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Posted on 11-09-2008 20:13
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Does this help?
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Gerard Pennards
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Posted on 14-09-2008 17:39
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Hello Steve,
Yes, i't proves my point.
I took the liberty to work your picture a bit, you see antennal segments 1, 2 and 3.
In cautum 3 should be as long as 1 and 2 together, which clearly isn't the case. 3 is much shorter than 1 and 2 combined.
So it's a female Chrysotoxum verralli!
Greetings
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Edited by Gerard Pennards on 14-09-2008 17:40
Greetings,
Gerard Pennards
 
Steve Makin
#8 Print Post
Posted on 16-09-2008 15:03
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Veralli it is, then.

Thanks very much to both of you for your help.
 
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