Diptera.info :: Identification queries :: Diptera (adults)
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 Gymnosoma? Cistogaster? -> Gymnosoma costatum
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| brigitteu |
Posted on 26-10-2010 19:07
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 Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Hi is it possible to say somthing about species? Switzerland, 29.05.2010, 412 msm, near garden and small bitch Thank you very much, best regards, Brigitte brigitteu attached the following image:  [41.24Kb] Edited by brigitteu on 28-10-2010 20:36 |
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| brigitteu |
Posted on 26-10-2010 19:07
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
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brigitteu attached the following image:  [41.11Kb] |
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| Juergen Peters |
Posted on 26-10-2010 19:50
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 Member Location: northwest Germany Posts: 14422 Joined: 11.09.04 |
Hi, Brigitte! Looks like Cistogaster sp.. http://www.dipter...to_id=5797 http://www.dipter...to_id=5798 Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| brigitteu |
Posted on 26-10-2010 19:59
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Hi Jürgen there are more than Gymnosoma which looks like that? *puh* Titel is now new with ? Thank you for your help! |
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| Juergen Peters |
Posted on 26-10-2010 20:05
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Member Location: northwest Germany Posts: 14422 Joined: 11.09.04 |
Hi, Brigitte! brigitteu wrote: there are more than Gymnosoma which looks like that? Too much black for Gymnosoma, I think. Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| brigitteu |
Posted on 26-10-2010 20:23
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Cistogaster seems to have shorter antenna? |
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| Juergen Peters |
Posted on 26-10-2010 20:40
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Member Location: northwest Germany Posts: 14422 Joined: 11.09.04 |
brigitteu wrote: Cistogaster seems to have shorter antenna? You may be right. So let's wait for the experts... Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| ChrisR |
Posted on 27-10-2010 00:27
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
I'd go with female Gymnosoma  But not sure which species. brigitteu was correct - Cistogaster have smaller antennae 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| brigitteu |
Posted on 27-10-2010 13:39
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Thank you Chris for Lady's ID! |
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| Zeegers |
Posted on 27-10-2010 21:15
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Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
It looks indeed like a Cistogaster but it is a Gymnosoma. Female Cistogaster are completely black and males much more orange. Actually, we can identify this Gymnosoma, sometimes you just get lucky ! The frons shows an excellent 'nudifrons' black parafrontal, so this must be Gymnosoma costatum ! Excellent work, guys (male/female) Theo |
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| ChrisR |
Posted on 27-10-2010 21:18
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Just for the record how did you split nudifrons from costatum in this case? Just from the degree of blackness on the abdomen?
Edited by ChrisR on 27-10-2010 21:20 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| brigitteu |
Posted on 27-10-2010 22:39
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Thank you Theo (I'm happy :-) ) |
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| Zeegers |
Posted on 28-10-2010 18:41
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Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
The degree of blackness indeed and its size, costatum is really tiny. I know, not much of a scientific argument, but it works here. Nudifrons is pretty big for a Gymnosoma. Theo |
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