Pyrgota undata - Waved Light Fly is here

This is a rather neat fly, not commonly collected. They are parasitoids of beetle larvae, and for some reason I recall that they are supposed to be nocturnal, though your pictures portray them otherwise.

Am I supposed to ask if you're flashing the bat signal? Hey, you ain't in Gotham City.

Well, it's a fly, but I don't know which. The small antennae indicate a fly, as do two (not four) wings. Don't know about you, but I find it hard to count wings. But see those little whitish pads by the wings in your second and third photos? Those indicate the absence of wings and I can count them just fine. (Took me better than a year to learn this trick.)