Diptera.info :: Identification queries :: Diptera (adults)
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 Omphalophora sp. (Rhagionidae)
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| Rui Andrade |
Posted on 16-05-2010 19:43
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 Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
What can be said about this one? location: Porto, Portugal date: 04/03/2010 Rui Andrade attached the following image:  [43.13Kb] Edited by Rui Andrade on 25-02-2011 21:56 |
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| Rui Andrade |
Posted on 16-05-2010 19:43
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
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Rui Andrade attached the following image:  [56.63Kb] |
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| Zeegers |
Posted on 16-05-2010 19:57
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Member Location: Soest, NL Posts: 18616 Joined: 21.07.04 |
Strange. Either a curious Empidid or a Therevid, I'd guess. No Rhagionidae Theo |
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| Rui Andrade |
Posted on 16-05-2010 20:01
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Thanks Theo. I'm a little bit confused about this one |
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| phil withers |
Posted on 16-05-2010 22:38
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Member Location: Lyon, France Posts: 521 Joined: 04.03.08 |
Wiedemanniinae (Empid) |
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| Paul Beuk |
Posted on 17-05-2010 00:43
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 Super Administrator Location: Netherlands Posts: 19268 Joined: 11.05.04 |
Rhagionidae, I suspect Ptiolina.
Paul - - - - Paul Beuk on https://diptera.info |
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| Paul Beuk |
Posted on 17-05-2010 18:59
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Super Administrator Location: Netherlands Posts: 19268 Joined: 11.05.04 |
Not Ptiolina. Can you get me a close up of the antenna (lateral view), or better, the specimen ( )?
Paul - - - - Paul Beuk on https://diptera.info |
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| pwalter |
Posted on 17-05-2010 19:10
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 Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
Can I play? Vermileo sp. Based on wing, body is quite different. Walter Edited by pwalter on 17-05-2010 19:28 Walter Pfliegler - Amateur Nature Photographer from Hungary (and molecular biologist) |
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| Paul Beuk |
Posted on 17-05-2010 20:04
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Super Administrator Location: Netherlands Posts: 19268 Joined: 11.05.04 |
No, cell cup is closed in Vermilionidae.
Paul - - - - Paul Beuk on https://diptera.info |
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| Rui Andrade |
Posted on 17-05-2010 22:01
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Thank you guys for your effort! Paul, the photo below is the best I can do. But I'm sure I can send the specimen to you.
Rui Andrade attached the following image:  [45.79Kb] |
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| Paul Beuk |
Posted on 17-05-2010 22:07
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Super Administrator Location: Netherlands Posts: 19268 Joined: 11.05.04 |
Hmm, difficult to see enough detail about its segmentation...
Paul - - - - Paul Beuk on https://diptera.info |
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| Rui Andrade |
Posted on 17-05-2010 22:08
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Nevermind, I'll try to send the specimen soon. |
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| Paul Beuk |
Posted on 17-05-2010 22:28
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Super Administrator Location: Netherlands Posts: 19268 Joined: 11.05.04 |
Very interesting specimen. I cannot fit it in the genera currently covered by the Manual op Palaearctic Diptera, at least not on the basis of these pictures. Arthroceras appears to be closest: 4 spp., A. gadi (Paramonov), A. japonicum Nagatomi, A. leptis (Osten-Sacken), A. rubrifrons (Nagatomi); from the Siberian part of Russia and Japan.
Paul - - - - Paul Beuk on https://diptera.info |
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| Rui Andrade |
Posted on 17-05-2010 22:34
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
What a mystery this turned out to be. |
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| PeterKerr |
Posted on 18-05-2010 19:44
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Member Location: Posts: 12 Joined: 12.03.07 |
Hi Paul, You had it right (as taxonomy currently stands): it is Ptiolina sp. I have submitted a manuscript that shows that Ptiolina, as currently defined, is paraphyletic. This particular specimen should actually be called Omphalophora sp. This is on the basis of many consistent features (including DNA); most evident here is the position of the R5, which is posterior to the wing tip. So you can call it Ptiolina for now, but beware of upcoming change. It is a great group. Cheers! |
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| PeterKerr |
Posted on 18-05-2010 20:03
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Member Location: Posts: 12 Joined: 12.03.07 |
Hi again Rui and Paul, Another difference between some species of Omphalophora (such as this one) and Ptiolina spp. is the condition of cup. In Omphalophora, cup may be open or closed. Whereas, as far as I know, Ptiolina always has a closed cup. |
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| Rui Andrade |
Posted on 18-05-2010 21:48
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Thank you very much for the information Peter! What species are most likely for this specimen to belong to? |
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| Paul Beuk |
Posted on 17-06-2010 21:34
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Super Administrator Location: Netherlands Posts: 19268 Joined: 11.05.04 |
After examining the specimen and comparing with the descriptions of Narchuk it appears that Ptiolina cinereofasciata is closest. However, it might well be a new species and since this was a female I can only urge you to try to find a male (or preferably males), too.
Edited by Paul Beuk on 17-06-2010 21:34 Paul - - - - Paul Beuk on https://diptera.info |
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| Rui Andrade |
Posted on 18-06-2010 00:10
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Great, thanks a lot Paul! Do you think this time of the year they are still around? If so I can try to go to the place where I found it soon. |
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| Paul Beuk |
Posted on 18-06-2010 08:05
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Super Administrator Location: Netherlands Posts: 19268 Joined: 11.05.04 |
Three and a half months later? Probably not. Still, perhaps you can find other nice goodies if you try anyway.
Paul - - - - Paul Beuk on https://diptera.info |
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