Diptera.info

Posted by Dmitry Gavryushin on 21-06-2006 12:55

Early morning, edge of pine wood, on flowers of Aegopodium.
Wing-rotation movements. Pallopteridae?
Not collected, size 3-4mm.

Edited by Dmitry Gavryushin on 21-06-2006 12:56

Posted by Dmitry Gavryushin on 21-06-2006 12:57

One more view.

Posted by Paul Beuk on 21-06-2006 13:18

One of the Pallopteridae, I think. I will leave this one to Jan Willem.

Posted by Dmitry Gavryushin on 21-06-2006 13:38

Thanks, OK then.

Posted by Jan Willem on 21-06-2006 15:00

Hi Black,

I will give it a try tonight. However I know that Andrey Ozerov has described several new species from Russia. I don't know these species. So it may be a good idea to ask Andrey Ozerov for his opinion.

Jan Willem

Posted by Nikita Vikhrev on 21-06-2006 15:45

Dima, Jan doubts, so it may be something interesting. Plaese, do your best to collect several flies!

Posted by Jan Willem on 21-06-2006 19:57

Hi Dima,

My best guess would be Toxoneura quinquemaculata (or Palloptera quinquemaculata), but I'm not at all sure. The ovipositor should be broad, but you can only see the tip; the space below the eye should be high, but that is difficult to see.
I'm looking forward to hear the opinion of Andrey Ozerov.

Jan Willem

Posted by Paul Beuk on 21-06-2006 20:25

Jan Willem, what is the status of Palloptera in its broad sense and the situation with all the separate smaller genera?

Posted by Jan Willem on 21-06-2006 23:34

Hi,

Paul Asked:
what is the status of Palloptera in its broad sense and the situation with all the separate smaller genera?

In the British checklist is stated:

McAlpine recognised the splitting of Palloptera into several genera, the British species being assigned to Palloptera, Temnosira Enderlein and Toxoneura Macquart. These genera were based on chaetotactic characters which did not lead to natural groups, so are not accepted here.

Well I have to admit that I have my doubts about the generic devision proposed by McAlpine and therefor prefer placing the species of these genera all in the genus Palloptera (with the exeption of Eurygnathomyia bicolor), like is done in the British checklist. Apparently several dipterists think otherwise because the generic division of McAlpine is followed by many of them.
I have to admit though that to form a good opinion about this I would really need to study a lot of specimens much more serious than I have done yet (which would not be a bad idea if I had the time to do so!).

Jan Willem

Posted by Paul Beuk on 21-06-2006 23:37

#10

Thanks. Well, it may be interesting to knwo that A. Ozerov also synonymised several of McAlpine's Piophilidae genera...

Posted by Dmitry Gavryushin on 22-06-2006 08:27

#11

Thanks to all, I just wonder what kept me from collecting it (maybe heat), the fly was rather indolent - maybe next morning I'll examine Aegopodium umbels there.

Posted by Andrey Ozerov on 22-06-2006 11:05

#12

It is Toxoneura trimacula (Meigen), I think.

Posted by Jan Willem on 22-06-2006 12:22

#13

Hi Andrey,

I think you are right. At first I thought cross vein ta was also clouded, but giving it a better look I think only the vein itself is dark. In Toxoneura quinquemaculata this vein is distinctly clouded. Moreover, the specimen is too pale for quinquemaculata and the jowl (although you cannot see this very clearly in the picture) seems not to be high enough for quinquemaculata.

So Dima, you can label it Toxoneura quinquemaculata.

Sorry, should be: You can label it Toxoneura trimacula

And Andrey, what is your opinion on the division into genera like Toxoneura, Temnosira, and Palloptera?

Jan Willem

Edited by Jan Willem on 22-06-2006 13:08

Posted by Dmitry Gavryushin on 22-06-2006 12:25

#14

Thanks a lot Andrey and Jan!

Posted by Jan Willem on 22-06-2006 12:58

#15

Sorry Dima,

Jan Willem wrote:
you can label it Toxoneura quinquemaculata.

That should be:

You can label it Toxoneura trimacula!

Jan Willem

Posted by Dmitry Gavryushin on 22-06-2006 14:22

#16

It's OK I recognized the typo.

Posted by Dmitry Gavryushin on 03-07-2006 23:13

#17

Is it the same one?
Collected by sweeping on July o1, 2006 at approximately same location (more open place, closer to the railroad). Size 3.5-4mm.