Diptera.info :: Family forums :: Syrphidae
 Chrysotoxum?
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| Josef Buecker |
Posted on 31-08-2008 08:47
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 Member Location: Hagen, Germany Posts: 616 Joined: 03.02.08 |
Hello Forum, is this hoverfly a Chrysotoxum spec? ID possible? Hagen, NRW, Germany, alder marshland, 175 msm, on Angelica sylvestris. August 6th 2008 Best regards, Josef Josef Buecker attached the following image:  [150.51Kb] |
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| amalia_raluca |
Posted on 31-08-2008 09:22
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 Member Location: Romania Posts: 590 Joined: 22.03.07 |
C. intemedium-the third antennae segment is longer then 1 and 2 together Amalia |
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| Guillermo Booth Rea |
Posted on 31-08-2008 09:27
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Member Location: Granada Posts: 276 Joined: 08.02.08 |
It clearly is Chrysotoxum. I think C. elegans. Although, I am not an expert. One key feature is the lenght of the antennas. But I do not like the angle of the photo for measuring it. If the third segment had the same length as the two first ones together, it could also be C. cautum. I can not see the separation of the eyes very well, if it were a female, then it is not cautum, because the abdominal yellow strip in tergite 6 is not separated in two patches by a longitudinal, median, membranous strip. |
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| amalia_raluca |
Posted on 31-08-2008 09:50
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Member Location: Romania Posts: 590 Joined: 22.03.07 |
the eyes are separated so it is a female and in my opinion the third segment it is longer the the 1 and 2 segments  Amalia |
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| Guillermo Booth Rea |
Posted on 31-08-2008 11:32
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Member Location: Granada Posts: 276 Joined: 08.02.08 |
In that case, it could also be C. arcuatum. ?No? |
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| Josef Buecker |
Posted on 31-08-2008 18:19
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Member Location: Hagen, Germany Posts: 616 Joined: 03.02.08 |
Hello Amalia, hello Guillermo, here a close up of the antennae. I hope, it can be helpful. Best wishes, Josef Josef Buecker attached the following image:  [85.13Kb] |
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| Stephane Lebrun |
Posted on 02-09-2008 21:37
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Chrysotoxum arcuatum is also my guess.
Stephane. |
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