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Hello,
In the south of France on April 21, 2025.
The insect measures 7.5 to 8 mm long.
I'm thinking it's a Bombylius, but I've never seen this wing venation on the Bombylius that I've already photographed.
Thank you for your help with the identification.

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I'm trying to post a third photo, but it's not working.

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Hello Liliane, did you check the photo's size and "no spaces, no dots..." in the filename?
See https://diptera.i...p?cat_id=2
A lateral photo showing a femur could help.

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This is precisely a photo where you can see the femurs!
The title 210420253 and the weight of the photo are the same as those in the first photos.
I would send it to you by private message, but I see that attachments are not allowed.

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I've received the photo and try to add it to your thread.
I'm not sure but I think it could be a female Bombylius cinerascens - I've never seen it.

EDIT: I also cannot add this image...

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new try (copied the file to .png than as .jpg and here it is:

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Bravo and thank you Eric

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I can't find this particular venation (circled in white) on Bombylius cinerascens.
But I don't know if it's important?

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I've seen that, too, and I do not think, that this stub is relevant for an ID:
If you look at this overview of some Bombylidae wings:
https://galerie-i...ref=155933, you'll find the stubs on several species' wings.
In Exoprosopa: https://galerie-i...ref=354544 you'll see a complete vein instead of the fragment.
Unfortunately I cannot give you a scientific explanation for the phenomenon but I think it has to do with evolution.

Nota bene: I'm still not sure, if B. cinerascens is correct - if you'd add it to the threads title, we would have a chance to attract an expert.

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Thank you for your research and for the links. Indeed, this interrupted venation is not a specific feature of a species!