Diptera.info

Thread subject: Diptera.info :: Tephritis?

Posted by krafttho on 04-03-2019 06:42

Is it possible to identify this Tephritis? At least I think that is the genus. South of Sweden, beginning of March.

Posted by krafttho on 04-03-2019 06:44

Pic 1

Posted by krafttho on 04-03-2019 06:44

Pic 2

Posted by krafttho on 04-03-2019 06:44

Pic 3

Posted by Dukegraffio on 05-03-2019 07:40

Tephritis c.f neesii?
We await the opinion of the teacher Korneyev.

Posted by krafttho on 05-03-2019 08:15

Thanks so far!

Posted by tristram on 05-03-2019 15:04

T. neesii is often associated with Leucanthemum vulgare (ox-eye daisy).

Posted by krafttho on 05-03-2019 16:00

Leucanthemum vulgare is very common in the region, but this fly was found in coniferous trees. I guess wintering habitat could be different.

Posted by Nosferatumyia on 05-03-2019 17:30

Certainly not neesii.
I forward your request to Severyn, for he's the best expert in Tephritis ever.

Posted by Severyn on 05-03-2019 18:03

#10

This is a very interesting specimen, actually. Is it possible to take a picture of aculeus tip under the microscope or something? How it looks?
https://drive.google.com/open?id=1Z_qbkoCPH1Y-qViGASItQGJzVYDaA84b

Edited by Severyn on 05-03-2019 18:06

Posted by krafttho on 05-03-2019 22:58

#11

Then I need some explanation of what the aculeus is...

Posted by Paul Beuk on 06-03-2019 08:24

#12

aculeus

. Sometimes the aculeus is the only character that can be used to separate species.

Edited by Paul Beuk on 06-03-2019 08:24

Posted by krafttho on 06-03-2019 17:18

#13

Is this the right structure? Do you need higher magnification?

Posted by krafttho on 06-03-2019 17:45

#14

One more photo taken with higher magnification.

Posted by Nosferatumyia on 07-03-2019 08:02

#15

Thanks, the last is correct!
Let us wait for Severyn's conclusion

Posted by Fred Fly on 07-03-2019 09:43

#16

My vote is going to Tephritis leontodontis. High abundant and variable in South of Sweden.
Regards
Fred

Posted by Nosferatumyia on 07-03-2019 14:25

#17

That is why we were asking about its aculeus: leontodotis has deeply incised tip of the aculeus, so it is not that species.
It indeed looks more like T. neesii , a species with greatly variable wing pattern, however? but it looks like its abdomen is entirely white setulose: if there are some black setulae on abdominal tergites, then IT IS neesii -- Severyn and I have discussed, but cannot see this character clearly at your pics, so please examinate it under higher magnification: some setulae at fore margins of tergites must be black.

Posted by krafttho on 07-03-2019 19:31

#18

I had a look and there are a few black setulae on the tergites. I tried to take a photo showing this character but it is difficult. There are some shadows from white setulae that might be mistaken for black setulae. Direct observation in the microsope was much clearar.

Posted by krafttho on 07-03-2019 19:32

#19

Many thanks for your help!

Posted by Dukegraffio on 08-03-2019 07:06

#20

:D|t

Posted by Nosferatumyia on 08-03-2019 07:36

#21

Yes, it is not common, but Severyn and I ran into the same problem with Stackelberg's specimens from St Petersburg: some 30% of specimens have mostly white setae, and it was very difficult to fit the key couplets. It must be taken into account for the new key to Tephritis.
BTW, there are almost no "blondies" in the southern populations.

Posted by Fred Fly on 08-03-2019 10:45

#22

With the last picture I can follow setermination. Nevertheless I will examine my specimens from Sweden for some "blondies"
Regards
Fred

Posted by Nosferatumyia on 08-03-2019 21:49

#23

Now I see.
So it is neesii, apparently the most variable species of European Tephritis.