Hi Mr. Bugman!
I hope you can open this attachment and view this bug and let me know what it is…it’s making crazy, cause I can’t find out on my own…we’ve lived here for 8 yrs. and last year was the first year they appeared…i have a close up picture on a white background if you think you can analyze easier. These guys appear like they are floating or swimming underwater rather that flying…if you can let me know if the picture is good enough i’d appreciate it very much!
This is a Phantom Crane Fly, Bittacomorpha clavipes. Your description of their etherial manner of flight is quite accurate.