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Is with these phots an ID possible?
Body length 6,5mm. Vienna, mid October.

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I’d say a male Calliphora loewi, nice.
We need to see the wing base slightly from above, lateral or anterolateral. To establish the colour of basicosta.

Theo

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Thanks, Theo. I had a look at the basicosta, it is black.

However, I understand that this species is more northerly distributed, so I assume it prefers colder (and moist?) environments. So I wonder if this species is to be expected in the city area of Vienna, where it is rather hot and dry...

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It is probably overlooked.
In the Netherlands, records (just a few) are from September - October. When it is cold.....

Theo

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I will gladly accept the ID :-)
Is C. vomitoria var. loewi a synonym?

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No doubt synonym, though I have never seen this combination, pretty strange.
Probably very old (?).

Theo

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Now found out, it comes from here:
http://ubio.org/b...ID=6616088

--> Calliphora vomitoria var. loewi Enderlein 1903

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Well, I think this shows dumping all kind of names in a database is useless, unless one can verify its source. Probably / Possibly some old book was scanned and plundered for names.
In any case, This opinion ( of loewi not being a valid species) is rejected by all modern authors. Check Rognes “ Calliohoridae Scandinavica”

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Yeah, this name was apparently imported from ubio.org into the database for inaturalist.org where the name now represents the species (or ssp. in this case). Will change this error.

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Waldgeist pointed out that this one looks more like a Bellardia, so here are some additional images from the head and calypters

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Now you mention it, the bluish colour seems to be an artifact of the light.


Theo