Diptera.info :: Identification queries :: Diptera (adults)
 Cistogaster globosa, was : small gymnosoma ?
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| Philippe moniotte |
Posted on 12-07-2010 09:38
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 Member Location: Heron, Belgium Posts: 865 Joined: 14.10.05 |
Hello, This one is very small (Approx 4-5 mm). Looks like a Gymnosoma, but is it possible to find out which one ? Seneffe, Belgium July 7th Thanks for your help Philippe Philippe moniotte attached the following image:  [53.95Kb] Edited by Philippe moniotte on 12-07-2010 21:26 A beautiful hypothesis can be slain by an ugly fact. |
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| ChrisR |
Posted on 12-07-2010 09:42
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
It's hard to gauge scale ... and the distinction between Cistogaster and Gymnosoma is the length of the antennae (which we can't see in this photo). But I'd guess that it is most likely to be Cistogaster globosa (male) but it might be Gymnosoma nitens as an outside bet  Do you have any photos showing the antennae? Edited by ChrisR on 12-07-2010 09:42 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Philippe moniotte |
Posted on 12-07-2010 21:05
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Member Location: Heron, Belgium Posts: 865 Joined: 14.10.05 |
Hello Chris Thanks, I believe you're right and it's Cistogaster. My only picture showing the antennae is lousy (to say the least) but it seems to show they are indeed rather short Philippe Philippe moniotte attached the following image:  [52.89Kb] A beautiful hypothesis can be slain by an ugly fact. |
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| ChrisR |
Posted on 12-07-2010 21:13
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Yes, I agree - those antennae are short ... the abdominal markings also match male Cistogaster globosa better
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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