I’m not sure what type of eggs these are, but I saw several clutches like this. I thought at first perhaps a fungus had grown over them and that might be the case. I’m more inclined to believe the webbing was added as some sort of protection by whatever is responsible for the eggs.
I suppose these could also be cocoons, but I’d be surprised if the larvae managed to align themselves so well.
Had I found these in my own backyard, I’d have kept them to see what emerged.