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Which shows that while Wikipedia in often useful, any fact in it can be wrong. Real corollae female have yellow spots that reach the edge of tergites (the plates forming the upper surfave of abdomen). The 5th tergite should have yellow edges and the spots are also a bit too narrow for corollae. Many of the photos found by a Google image search appear to be misidentified, but the first two photos on this page has real corollae.

The best character for lapponicus is in the wing venation and it can not be seen in a flying insect.

I'm not a specialist in syrphidae and will not hasard a guess on the real identity of your fly. Could be a Eupeodes nielseni, or a dark E. lundbecki, or a E. lapponicus - or a Dasysyrphus?