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I'm starting to have doubts now. There seem to be small yellow spots on tergite 2, which would indicate M. lucifera. The spots, however, are very small. Compare, for instance, the picture of this species in this thread:
http://www.diptera.info/forum/viewthread.php?thread_id=37003
The pterostigma seems to be too dark for M. lucifera and the markings on tergites 3 and 4 are not of the right shape.
So, M. quadrimaculata seems more likely.
Perhaps this is what Mr. Mielczarek was (unsuccessfully) trying to make clear by shouting "This is not M. lucifera!"?