Signal fly

I have spotted this interesting fly three times in our Wildscape (twice last year). Yesterday evening, I saw this one "nervously" crawling up and down a blade of grass. Yes, I took a short video (see bottom). It is a species of signal fly called Senopterina caerulescens. Bugguide.net has next to no information on this specific species. It doesn't even have a common name. The website does have some good info on the signal fly family, Platystomatidae. In the meantime, I also found "Signal Fly," posted online by the BugLady at the University of Wisconsin-Milwaukee. Nature is so diversified!