Diptera.info :: Identification queries :: Diptera (adults)
 Miltogramminae (Amobia)
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| Christine Devillers |
Posted on 08-12-2007 13:16
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 Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
This one was flying close (15 cm) behind an Ancistrocerus. While the wasp was taking clay from a cob wall, the fly was staying about 10 cm behind. When the wasp flew away the Sarcophagidae followed it very quickly. It was amazing to see those 2 insects flying as if they were connected by a string, same changes of direction and always the same distance (15cm) between them. What is it? Christine Devillers attached the following image:  [140.64Kb] Edited by Christine Devillers on 05-04-2008 20:23 |
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| Christine Devillers |
Posted on 08-12-2007 13:17
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Photo 2
Christine Devillers attached the following image:  [161.12Kb] |
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| Christine Devillers |
Posted on 08-12-2007 13:22
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
This (bad) photo just to show the Ancistrocerus followed by this Sarcophagidae.
Christine Devillers attached the following image:  [103.1Kb] |
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| jorgemotalmeida |
Posted on 08-12-2007 13:48
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
it is waiting to stole the food of the wasp.  |
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| Zeegers |
Posted on 09-12-2007 09:14
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Member Location: Soest, NL Posts: 19310 Joined: 21.07.04 |
The fly looks like Amobia, three very similar species. Theo |
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| Christine Devillers |
Posted on 09-12-2007 22:05
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
I saw this Amobia in my garden (Spa, Belgium). On Fauna Europaea, only Amobia signata in Belgium. Is it wrong? |
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| Zeegers |
Posted on 10-12-2007 07:29
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Member Location: Soest, NL Posts: 19310 Joined: 21.07.04 |
Ah, it is from Belgium. Well, I don't know if the Belgium specimens have been properly identified. A. signata is surely a Belgium species, the others I don't know. Theo |
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| Susan R Walter |
Posted on 10-12-2007 14:51
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Christine The UK only has A signata too, and here is a link to my thread http://www.dipter...ad_id=5090. I don't know if the shape of the irregular dorsolateral stripe is important for the ID to species level. Yours seems to be slightly different to mine. I could be wrong though. Edited by Susan R Walter on 10-12-2007 14:52 Susan |
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| Zeegers |
Posted on 10-12-2007 19:17
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Member Location: Soest, NL Posts: 19310 Joined: 21.07.04 |
Well, we really would need to study the male genitalia to say more. Theo |
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| Liekele Sijstermans |
Posted on 12-12-2007 12:38
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Member Location: Geldermalsen Netherlands Posts: 305 Joined: 16.04.05 |
I agree with Theo. List of Belgium is not complete regarding Sarcophagidae. Three species of Amobia are reported of Germany. So we might in Netherlands and Belgium expect some other species as A. signata only. Draber Monko 1966 gives key to females. According to this key this is Amobia signata. But Verves, 1990 gives key mainly based on genitalia of female. Several species of Amobia are reported as cleptoparasite of Ancistrocerus. Liekele |
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| conopid |
Posted on 12-12-2007 17:44
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 Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
I too have seen this fly following Ancistrocerus around as if they were attached by string. Amazing to watch and puts human reaction times into perspective!
Nigel Jones, Shrewsbury, United Kingdom |
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| Christine Devillers |
Posted on 05-01-2021 21:05
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Sorry for the misidentification of the wasp followed by the Amobia. It was a female of Symmorphus not of Ancistrocerus. Christine |
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| Zeegers |
Posted on 06-01-2021 08:50
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Member Location: Soest, NL Posts: 19310 Joined: 21.07.04 |
Whoah ! After 14 years correcting an mistake, talking about scientific ethics  !Theo |
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