Ha, found it! Mydas clavatus. That right?

A glance through the Mydas flies does not show any other close look-alikes, so I agree with your ID. Note that robber flies have very tiny antennae.

Thank you so much! The small robber flies seem to have a very successful year so far, so I have seen them a lot and should have paid attention to the antenna. I just went with the overall shape. Just from today.

...and if your initial text above was referring to the Ohio Giant 9-year-old thread, thanks for not over-estimating the size of the above Mydas fly, as the most recent poster there did with a wasp or hornet on a curtain.

I was. Very interesting to read.