Diptera.info :: Identification queries :: Diptera (adults)
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 Psilopa ID confirm?
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| Carnifex |
Posted on 09-10-2019 20:25
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 Member Location: Vienna, Austria Posts: 2047 Joined: 23.06.15 |
Hi, this small (2mm) fly was found on Phragmites near a fishpond in Burgenland/Austria. I noticed a strong bristle at the base of the flagellum.   
Edited by Carnifex on 24-05-2023 21:31 Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| John Carr |
Posted on 09-10-2019 22:10
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 Super Administrator Location: Colorado, USA Posts: 10661 Joined: 22.10.10 |
Ephydridae (arista with hairs only dorsally) |
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| Carnifex |
Posted on 09-10-2019 22:30
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Member Location: Vienna, Austria Posts: 2047 Joined: 23.06.15 |
Thanks, I will try the British Key, hope it works for central Europe as well. Also, adjusted the title Edited by Carnifex on 09-10-2019 22:31 Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| Nikita Vikhrev |
Posted on 10-10-2019 20:30
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 Member Location: Moscow, Russia Posts: 9561 Joined: 24.05.05 |
Psilopa, I think
Nikita Vikhrev - Zool Museum of Moscow University |
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| Carnifex |
Posted on 18-10-2019 15:13
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Member Location: Vienna, Austria Posts: 2047 Joined: 23.06.15 |
Using the British key, I am passing Psilopa and reaching Athyroglossa. Does that look reasonable?
Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| John Carr |
Posted on 18-10-2019 15:16
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Super Administrator Location: Colorado, USA Posts: 10661 Joined: 22.10.10 |
In the American key, Posterior margin of postgena meeting occiput at acute angle; postgena with fine pale setulae. Mostly or entirely shiny black species, with setation much reduced ... Athyroglossa and Platygymnopa Posterior margin of postgena meeting occiput at obtuse and broadly rounded angle; postgena usually with coarse black setulae. Shiny to dull species with setation usually well-developed ... other genera including Psilopa |
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| Carnifex |
Posted on 18-10-2019 15:23
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Member Location: Vienna, Austria Posts: 2047 Joined: 23.06.15 |
It's shiny black surface makes it difficult to spot setae, but it doesn't seem to have coarse black setulae at the postgena. On the thorax, there are about 8-10 nicely separated rows of fine setae. What does the term 'Face wrinkled below the protuberance' mean, where do I have to look? Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| Tony Irwin |
Posted on 18-10-2019 17:23
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 Member Location: Norwich, England Posts: 7350 Joined: 19.11.04 |
Vein R2+3 is much longer in Athyroglossa - I'm inclined to favour Psilopa, but it's difficult to say from photos. We'll need better lighting and focus to take this one further, I think.
Tony ---------- Tony Irwin |
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| Carnifex |
Posted on 19-10-2019 20:19
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Member Location: Vienna, Austria Posts: 2047 Joined: 23.06.15 |
Ok, trying to take this thing further  But first, I have to admit I am struggling with the wording in the British key, namely at the decision at the path between Psilopa or others: 'Four sub-equal setae in front of the scutellum, the inner pair not being the last in the line of the innermost small ‘acrostichal’ hairs but with two rows of hairs between the inner pair of prescutellar setae' I am not sure what the termn 'last' refers to. Anyways, I hope the pictures provided (pre-scutellar bristles and minute diverging post-ocellar setae) are helpful for the ID  
Edited by Carnifex on 24-05-2023 21:32 Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| Carnifex |
Posted on 26-01-2020 11:59
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Member Location: Vienna, Austria Posts: 2047 Joined: 23.06.15 |
I have the specimen now as Psilopa nitidula, but a confirmation would be nice
Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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