Yes, this is M. scutellata! How awesome!

I went back and was able to find Hull's original 1924 description of M. scutellata. Of particular note other than the scutellum are the somewhat narrower black markings on the abdomen (though this seems to vary in the virginiensis images we have here on BG) and, more usefully, the thoracic marks. Hull writes:

"Thorax black, marked with yellow, similarly to virginiensis, but differing as follows : in that species there are two transverse, medianly interrupted, yellow bands on the thorax, the first between the humeri, the second just behind the suture. The median, broken ends of the humeral band are turned down and drawn out acutely to a point, but never continuous with the sutural or second band of the thorax ; in scutellata the two bands are broadly connected in the middle, forming thus two U's, their open ends facing outward, laterally."

This fly's markings are quite clearly scutellata in all regards.

Great find!

Thank you for the information, Ken. I have a number of photos of this insect, but only one top view, posted above. In each photo, however, including a pretty blurry flying shot from the side, I see only a thin dark band on on the top of the scutellum.