Diptera.info :: Identification queries :: Diptera (adults)
 Anthomyiidae for ID, N Spain
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| Piluca_Alvarez |
Posted on 07-09-2011 12:48
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 Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
This was a biggish fly. At first glance I thought it was going to be a big Anthomyiidae but in close look, it looks more like Muscidae. Hope somebody can ID it. Thanks in advance, as usual! Taken in Gijon Botanical Gardens, N Spain on the 19th June 2011. Piluca_Alvarez attached the following image:  [157.01Kb] Edited by Piluca_Alvarez on 07-09-2011 20:01 |
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| Piluca_Alvarez |
Posted on 07-09-2011 12:49
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Another view.
Piluca_Alvarez attached the following image:  [170.89Kb] |
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| Piluca_Alvarez |
Posted on 07-09-2011 12:49
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
And another view.
Piluca_Alvarez attached the following image:  [152.48Kb] |
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| jorgemotalmeida |
Posted on 07-09-2011 12:54
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Looks like Potamia litoralis |
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| Piluca_Alvarez |
Posted on 07-09-2011 13:12
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Thanks a bunch, Jorge!! That was quick!!  Potamia seems good. But my fly gives the impression of having longer legs, more robust torax and more slender abdomen. Or perhaps my eyes are deceiving me!  |
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| paqui |
Posted on 07-09-2011 16:50
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Member Location: Valencia (spain) Posts: 816 Joined: 02.09.05 |
Anthos are very difficult to me, couldn't it be Eustalomyia? how can we differ then these two genera? regards |
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| jorgemotalmeida |
Posted on 07-09-2011 18:10
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
well I overlooked the anal vein. seems to reach the margin (in 1st photo)... if so, Eustalomyia would be better.. |
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| Piluca_Alvarez |
Posted on 07-09-2011 20:00
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
I cannot see the long anal vein in the first shot but I can in another shot I have (got many). So it is Anthomyiidae in the end  Well spotted, Paqui!! I have checked Eustalomyia and Eustalomyia histrio looks extremely convincing!! More than anything else I have checked. Let's see if somebody can confirm this. Anyway, thanks a lot to you both, Paqui and Jorge!!
Edited by Piluca_Alvarez on 07-09-2011 20:03 |
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| Stephen R |
Posted on 07-09-2011 20:11
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 Member Location: Clitheroe Lancashire UK Posts: 2396 Joined: 12.06.09 |
Here is Michael Ackland's key for Eustalomyia (m&f): 1 Legs and palpus partly yellow............................................................................................................ vittipes Zett. – Legs and palpus completely black......................................................................................................................... 2 2 Arista long haired, the length of the hairs on upper and lower side are each equal to width of postpedicel. Mid vitta of scutum widened behind into a rounded spot............................................................................ hilaris Fall. – Arista short haired or pubescent. Mid vitta of scutum equally wide throughout ................................................... 3 3 The length of hairing of arista in total equal to width of postpedicel. Hind tibia with 7 av setae.........festiva – Hairing of arista significantly shorter, the arista is only pubescent. Hind tibia with 12 av setae..........histrio Zett. You may be able to do it from your photos... |
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| Piluca_Alvarez |
Posted on 07-09-2011 20:51
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
OMG! OMG! OMG! Thanks sooooo much for that, Stephen!! I have worked on my pictures and the result is... Eustalomyia histrio!!! In the general pictures I posted it is clear (I think, no doubt in the originals) that all legs are dark and so are the palpi. I cannot see hairs at all on the aristas, and I think the pictures are clear enough. I don't have a really clear shot of the rear leg but in the clearer, where I cannot see the whole leg, I count 10 setae and not even all the leg can be seen! Going to prepare pics of all this so that you guys can give your opinion Back in a little while. |
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| paqui |
Posted on 07-09-2011 23:26
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Member Location: Valencia (spain) Posts: 816 Joined: 02.09.05 |
Hi, i have a synonyms' doubt with this genera. - Old keys separated E. festiva and E. histrio with the rounded shape of the end of the central stripe of thorax of E. festiva. (not M. Ackland's new ones, so maybe thorax's pattern is not reliable (?)) - I´m not sure if E. festiva and E. hilaris are synonyms - Fauna E. accepts them as 2 species - there are pics in the gallery with the 2 names - M. Ackland keys' don´t include E. hilaris, but these keys are for British Anthos - Fauna E. says them both (hilaris and festiva) occur in UK ¿?¿?¿?  Any help is welcome Edited by paqui on 07-09-2011 23:29 |
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| Stephen R |
Posted on 08-09-2011 10:31
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Member Location: Clitheroe Lancashire UK Posts: 2396 Joined: 12.06.09 |
E. hilaris is the first option in couplet 2 of the Ackland key, and that's the one with the round end to the central vitta. I should say that in my copy of the key the name festiva is missing, and I have put it in.
Edited by Stephen R on 08-09-2011 10:38 |
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| Piluca_Alvarez |
Posted on 11-09-2011 22:35
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Thanks a bunch for your input, Stephen!!! Definitely, I am not good at following keys if I have no experience with the family I didn't understand 'the round end to the central vitta' as I didn't manage to see it  Anyway, Stephen, if you are so kind to have a look at the details I am posting and see if they help you to confirm hilaris, I would be most grateful! The antennas: Piluca_Alvarez attached the following image:  [111.43Kb] |
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| Piluca_Alvarez |
Posted on 11-09-2011 22:36
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
The palpi:
Piluca_Alvarez attached the following image:  [117.95Kb] |
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| Piluca_Alvarez |
Posted on 11-09-2011 22:37
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
The back legs:
Piluca_Alvarez attached the following image:  [128.02Kb] |
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