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Today, 1500 mts spanish pyrenees

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another

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Looks it has complete mesonotal suture. Americina media (Scathophagidae)?

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Thanks for your comment.
Resembles:
Cordilura (Cordilurina) albipes Fallén, 1819

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This looks like Strongylophthalmyia ustulata (Strongylophthalmyiidae)

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Yes, the fourth possibility (S. ustulata) seems me now the most probable. S. u. has mesonotal suture incomplete but laterally deep; the pictures can be interpreted accordingly.

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I add a photo from today

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Very nice. Is Strongylophthalmyia recorded already for Spain?

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Yes it is in 1992

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Looks good to me too, a nice find. Some more details at https://micropezi...my/term/55 and Krivosheina's 1982 key is at https://micropezi...fo/node/85

I'm intrigued by the knowledge that it is already known from Spain, research has the Spanish checklist for the group at https://micropezi.../322#Spain and it's not on the Spanish photo site (Invertebrados InsectariumVirtual at https://www.biodi...26409.html)
I'd be very grateful for that 1992 reference to help put the record straight.

They don't turn up very often in Europe, the last one was at https://www.inatu.../131629646 that one will finish up on GBIF so if you could see your way to also adding your photos to iNaturalist that would be a great help because it's a geographical outlier.

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Darwyn,
I'm intrigued by the knowledge that it is already known from Spain
I found: http://sea-entomo...29-169.pdf so probably it is from Andorra only, not sure if it is cited in Spain.
and it's not on the Spanish photo site (Invertebrados InsectariumVirtual at https://www.biodi...26409.html)
My photos are in process to be elevated to the definitive file. Now you can find the here: https://www.biodi...09661.html
adding your photos to iNaturalist
Please feel free to copy the photos and you can add them for me if you wish. The locality is near Llessui (https://www.googl...d1.0740195

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This is the place, a shadow stream with a torrent river, wich i have visit four, five times during last two years because it is very hot nowdays and i prefer to go to coldest places. At a very few small distance I have found very interesting flies, for example, apart from this one:

Possible Xanthochlorus, could be new subfamily Xanthochlorinae for Spain (https://diptera.i..._id=107458
Possible new species for Spain: Xylota jakutorum, with reserves (https://diptera.i..._id=107394)
Medina collaris, a rare tachinid in Spain with no photos (https://diptera.i..._id=107350)
Sciara hemerobioides, rare at least for me (https://diptera.i..._id=102785, and others sciaridae not posted...
Palloptera ambusta, both years, I would say it is a new fly for Spain (https://diptera.i..._id=102765)
Ocydromia cf glabricula, a rare species in Spain (https://diptera.i..._id=102767)
Tanypeza longimana, vey rare species in Spain (https://diptera.i..._id=102685)
Also Hybotidae... (https://diptera.i..._id=102687), rare for me...
Hybos femoratus, first time for me, rare (https://diptera.i..._id=102495
Blepharicera fasciata, rare, https://www.biodi...09681.html
Paraclusia tigrina, in the same river, 10 minutes from this place, very rare in Spain, first photos (https://diptera.i..._id=107332

etc... so you know, go down to the stream!

Note: canyoning in this river has incremented a lot, for me it is a problem because other rivers are out "of order" because are dry and this one is "on fashion".