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Let's start with thr simplest solution: vicina.

All Calliphora are extremely similar. Rognes did a great job in describing the differences, I am not going to copy. In any case: you can only suggest another species if you are dead-sure it is not vicina, since 99.5% is vicina. Only in boreo-mountainous regions (like Norway) this is not true.

This one clearly is vicina:darkened calypter and yellow basicosta.

Theo