Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinid for ID, C Spain --> Pachystylum bremii
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| Piluca_Alvarez |
Posted on 17-05-2013 19:33
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 Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Taken in the outskirts of Madrid, feeling on Umbelliferae on May the 12th 2013. Help, please!!! 
Piluca_Alvarez attached the following image:  [145.11Kb] Edited by Piluca_Alvarez on 03-06-2013 19:33 |
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| Piluca_Alvarez |
Posted on 17-05-2013 19:34
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Another view.
Piluca_Alvarez attached the following image:  [175.29Kb] |
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| ChrisR |
Posted on 17-05-2013 20:07
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Looks a bit like Pseudogonia or Spallanzania - need to see the specimen to go further 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 18-05-2013 16:24
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
The apical scutellar bristles are crossed and erect in the first pic, so it must be something else....(?) Theo |
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| Zeegers |
Posted on 18-05-2013 16:28
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
What about Pachystylum bremii ? Theo |
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| Piluca_Alvarez |
Posted on 18-05-2013 17:31
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Chris, Theo, thanks a lot for your replies!! Theo, I didn't take notice of those erect apical scutellar bristles. I have checked in other pictures and they are there indeed What would you need to see to confirm the genus? I have more pictures from other angles. It is just the pictures I posted are the best in general view. But other features might be shown. |
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| Zeegers |
Posted on 19-05-2013 14:56
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
Post them all, please. You never know. Pachystylum was backupped by www.tachinid.eu, but with me at the steering wheel... so not really independent. Theo |
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| Piluca_Alvarez |
Posted on 22-05-2013 21:43
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Sorry for the delay in posting more pictures, Theo  Too busy lately...Here is a decent picture getting a bit backwards angled. You can see the erect apical scutellar bristles. Hope it helps. And thanks for your interest in this fly
Piluca_Alvarez attached the following image:  [136.58Kb] |
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| Zeegers |
Posted on 23-05-2013 15:53
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
So what is with the ocellar bristles. They seem to be completely lacking, is that right ? Theo |
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| Zeegers |
Posted on 24-05-2013 16:15
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
I compared it with my collection and it agrees pretty well with Pachystylum bremii, only the scutellum has slightly more red than in my specimens. There should be lateroclinate ocellar bristles, though. Maybe a trick of the picture ? Theo |
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| Piluca_Alvarez |
Posted on 03-06-2013 08:16
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Sorry again for the late reply, Theo! I am adding a picture where you might see what you are looking for. Sorry for the quality but it is the best I have.
Piluca_Alvarez attached the following image:  [133.69Kb] |
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| Piluca_Alvarez |
Posted on 03-06-2013 08:19
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
And this is a different specimen to the previous one, feeding in the same flowers at the same time. But I am sure it is the same species, too identical. You might see those bristles a bit better.
Piluca_Alvarez attached the following image:  [152.52Kb] Edited by Piluca_Alvarez on 03-06-2013 08:21 |
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| Zeegers |
Posted on 03-06-2013 08:24
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
So, ocellars are present and indeed proclinate ! No problemo Theo |
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| Piluca_Alvarez |
Posted on 03-06-2013 19:32
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Superb!!  Thanks again, Theo!! Another species that isn't in the gallery. I have to do something about it
Edited by Piluca_Alvarez on 03-06-2013 19:35 |
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| Zeegers |
Posted on 03-06-2013 20:25
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Member Location: Soest, NL Posts: 19363 Joined: 21.07.04 |
It is so aberranty typical, that you forget to recognize it. Like I nearly missed Pexopsis aprica, recently. By the way, pretty rare species, Pachystylum. Theo |
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| ChrisR |
Posted on 01-09-2013 11:29
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Hmm, I have just examined 2 Pachystylum bremii in my collection and they have a *much* longer second arista segment than in these photos, black palps (these seem pale/yellow) and a black scutellum (this is very orange). Are my specimens misidentified or does this cast some doubt on the identity of the fly in these photos?
Edited by ChrisR on 01-09-2013 11:29 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Piluca_Alvarez |
Posted on 01-09-2013 11:36
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Ooops!!!  Going to look again to my pictures and see if I can find something showing all that clearer |
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| sd |
Posted on 01-09-2013 14:45
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Member Location: Suffolk, UK Posts: 893 Joined: 11.10.07 |
I think Pachystylum also lacks the stub to the bend of vein M? Steve |
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| Piluca_Alvarez |
Posted on 01-09-2013 15:09
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Steve, I am afraid that is an aberration I photographed other specimens (all feeding in the same flowers at the same time) and they all look the same but for that little thing It is a pity because that would be something quite diagnostic, not commonly seen in Tachinids as a reliable feature, I believe. I have been checking and not even have in focus pictures of the face. The best I can show is a close up of the picture showing the palps. They are indeed yellow. Piluca_Alvarez attached the following image:  [109.22Kb] |
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| ChrisR |
Posted on 01-09-2013 16:28
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
I'll stick my neck out but could it be Gymnophryxe? I haven't seen this genus before but it seems to occur in Spain and the pictures in Cerretti look quite similar to this. I have run it through tachinidae.eu and it seems to fit too.
Edited by ChrisR on 01-09-2013 16:48 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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