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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

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pic. 2

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Opomyzidae, genus Geomyza

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

Thank you very much Andrzej

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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?

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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