Difficult Syrphid from the Syrphini
This little fly - 2 cm wingtip to wingtip - keys out to Epistrophe or Meliscaeva, but to neither with any certainty. Apart from the clear marking on tergites 2, 3 and 4 there are no others visible. The underside shows more bright yellow than I recall on other Syrphids. Other clues have I none. I want it to be M. cinctella, but given the diversity of markings in the subfamily I can't be sure of anything. I'd welcome some guidance.