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View Thread :: Identification queries :: Diptera (adults)
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Ulidiidae? => Opomyzidae, Group Geomyza annae, G. balachowskyi, G. hackmani, G. martineki
Siegfried Rudolf
#1 Print Post
Posted on 29-08-2023 22:58

Location: D / Staufen im Breisgau
Posts: 324
Joined: 23.03.21

Hello everyone,

I photographed this little fly today in southwest Germany on the bank of a stream. Is it possible to determine it? I estimate the size at 3 to 4 mm.

Greetings Siggi
Siegfried Rudolf attached the following image:

Edited by Siegfried Rudolf on 09-09-2023 09:36
Siegfried Rudolf
#2 Print Post
Posted on 29-08-2023 22:58

Location: D / Staufen im Breisgau
Posts: 324
Joined: 23.03.21

pic. 2
Siegfried Rudolf attached the following image:

#3 Print Post
Posted on 29-08-2023 23:00

Location: Poland
Posts: 2345
Joined: 05.01.06

Opomyzidae, genus Geomyza
dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences
Siegfried Rudolf
#4 Print Post
Posted on 29-08-2023 23:05

Location: D / Staufen im Breisgau
Posts: 324
Joined: 23.03.21

Embarrassing, I haven't even found the right family yet...

Thank you very much Andrzej
Jan Willem
#5 Print Post
Posted on 31-08-2023 10:05
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Location: Waalwijk, The Netherlands
Posts: 2132
Joined: 24.07.04

Difficult to be sure which species you are dealing with. It belongs to the group including Geomyza annae/G. balachowskyi/G. hackmani/G. martineki. The dark subscutellum would indicate this is not G. balachowskyi. Wing is a bit wider in G. martineki, compared to the other species, but that's difficult to properly judge. Did you collect the specimen?
Jan Willem van Zuijlen
Siegfried Rudolf
#6 Print Post
Posted on 09-09-2023 09:29

Location: D / Staufen im Breisgau
Posts: 324
Joined: 23.03.21

Hello Jan,

please excuse my late answer. Thank you for the additional information. They are very interesting to me. I didn't collect the animal. I just take photos.

Greetings Siggi
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Date and time
23 July 2024 20:43


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