I have those same bugs and the same damage on my roses. I was told by a county extensiojn agent that they are "Lace Bugs" (Not "lacewings"). They're practically transparent as adults and feed on the undersides of the foliage, which results in that speckled look.
Supposedly they tend to feed moreso on Ash trees and Azaleas (around here, anyway...).
I'd never seen these critters until a couple of years ago. Someone on the next street had a few huge Ash trees removed around that time so I guess they found my roses to be an alternate food source. (This is purely surmisal on my part.)
Either way, they seem to appear only in July, here...when the weather temperatures skyrocket. It's one of those situations where the damage is done seemingly overnight. I stripped all the foliage off the roses that were infected and they're now resprouting. The agent recommended spraying with insecticidal soap...which I forgot to do...until it was too late. Next year I'll be more vigilant.
