This is a tiny clearwing moth, less than an inch long. The "tailfeathers" must have a purpose, but whether it's as a horizontal stabilizer in flight, or fanning pheromones around, I don't know. Nor do I have this critter's ID yet.
Also on yesterday's discovery menu was a small brown and cream moth (didn't get a good shot), a jumping spider with a red heart on its back (but I think if a spider "hearts" you, it's not a good thing) and this longhorn beetle:
It reminds me of a beetle I photographed mating back in 2005, but the antennae here are definitely longer. (Edit--additional info. This is the same beetle, Sphaenothecus bivitatta. ID thanks to an entomology listserv I'm on and a very good image at Tex-Ento's website. That makes sense; it's the right time of year for this fellow.)