Diptera.info :: Family forums :: Syrphidae
 Chrysotoxum sp
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| tristanba |
Posted on 18-09-2007 14:40
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 Member Location: UK Posts: 97 Joined: 29.05.07 |
This from chalk grassland in S UK (Surrey), in early-mid September. Sems too yellow for C. festivum but not really right for C. cautum either? Could it be C. elegans? BW Tristan tristanba attached the following image:  [70.33Kb] Edited by tristanba on 18-09-2007 18:32 |
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| amalia_raluca |
Posted on 18-09-2007 18:16
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 Member Location: Romania Posts: 590 Joined: 22.03.07 |
I don't think that is festivum, because the yellow markings reach the margins of the abdomen. but in my opinion either cautum is: the first antennal segment is as long as 2th. what about octomaculatum?could it be? |
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| tristanba |
Posted on 18-09-2007 18:28
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Member Location: UK Posts: 97 Joined: 29.05.07 |
yes, that sp is possible, although it was not on a heathland site. C. elegans fits the habitat better (lowland calcareous grassland). here's another image tristanba attached the following image:  [79.33Kb] Edited by tristanba on 18-09-2007 18:34 |
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| Gerard Pennards |
Posted on 18-09-2007 19:16
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 Member Location: Amersfoort Posts: 1914 Joined: 07.06.04 |
Well, it seems to be a female of elegans or veralli. Looking at tergite two were the black band on the front seems to be rather straight, I think this is a female Chrysotoxum verralli! Greetings, Greetings, Gerard Pennards |
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| Iolaire |
Posted on 18-09-2007 19:24
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 Member Location: Langedijk, Netherlands Posts: 192 Joined: 17.08.07 |
Hi Tristan, My first thought was Chrysotoxum fasciolatum, but looking closer I think it's either C. octomaculatum or C. verralli. And I think the latter fits best! Edit: It seems Gerard has beaten me. But 2 for verralli: That's a comfirmation, I guess?! 
Edited by Iolaire on 18-09-2007 19:26 Best regards, Iolaire |
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| tristanba |
Posted on 18-09-2007 19:57
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Member Location: UK Posts: 97 Joined: 29.05.07 |
I would agree re black band and antennal segments are equal in length. Many thanks Gerrard & Iolaire! BW Tristan |
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