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this conforms to key here fwiw :
https://web.archive.org/web/20040307120801/http://home.hccnet.nl/mp.van.veen/KEYS/Eupeodes/eupesleu.html

- eye angle 120 degrees
- frons swollen with dense black hair on top

however, the key does not include all Icelandic species of Eupeodes :
there is

-punctifer
-borealis
-nigroventris

still to rule out