Diptera.info

Thread subject: Diptera.info :: Strongylophthalmyia ustulata

Posted by Marion Friedrich on 05-07-2022 22:15

Hi,
I found some of these flies on a dead aspen in June and July 2022 in Germany, Saxony. I guess Strongylophthalmyia ustulata. Am I right or could it be another species?
Greetings, Marion

Edited by Marion Friedrich on 25-08-2022 21:56

Posted by Marion Friedrich on 05-07-2022 22:16

2nd picture

Posted by Marion Friedrich on 05-07-2022 22:17

3rd picture

Posted by Juergen Peters on 05-07-2022 23:08

What about Psilidae?

Posted by Marion Friedrich on 06-07-2022 19:37

Hi Jürgen,
thank you for answer. I found this old thread
https://diptera.info/forum/viewthread.php?forum_id=5&thread_id=53383
Psilidae I can´t exclude, but Strongylophthalmyia ustulata was the best matching species for me.
I observed the flies on a thick stem of a dead aspen. Most of the Psilidae larvae should be phytophagous on nonwoody plants.
Best regards, Marion

Posted by Marion Friedrich on 18-08-2022 20:23

Lifted up with additional photo.

Posted by Darwyn Sumner on 23-08-2022 14:25

I agree, Strongylophthalmyia ustulata https://micropezi...my/term/55 and Krivosheina's 1982 key is at https://micropezi...fo/node/85
It would be most useful if you could also add this to iNaturalist then it will end up on GBIF where it will help complete the picture of its geographical distribution in Europe (https://www.gbif....es/1566830)
A good find.
Darwyn

Edited by Darwyn Sumner on 23-08-2022 14:34

Posted by Marion Friedrich on 25-08-2022 21:56

Thank you very much for confirmation of Strongylophthalmyia ustulata and the links, Darwyn.
Unfortunately, I am not familiar with iNaturalist, but you can use the data with the photos. The pictures were taken in Germany, Saxony, Chemnitz, Harthau on 04.07.2022 (1), 28.06.2022 (2), 25.06.2022 (3) and 11.07.2022 (4).
Greetings, Marion