Ring flash:
Common purple and gold Moth by Chris_Moody, on Flickr
The wings were deceptive, they looked pretty flat when I took the shot, but obviously f11 wasn't enough to get them all in focus with the angle they apparently were at. This was in the shade at 7pm or so I think, so I'd have never got the background exposed anyway.
Ring flash again I think, almost got the background exposed enough:
Rhododendron leafhoppers mating by Chris_Moody, on Flickr
You don't notice the out of focus part of the wing too much really as your drawn to the head, I quite like it with a black background too, but I think it might look better with the out of of focus bit of twig/branch/leaf/tree/bazooka thats hanging down on the left of the image wasn't there but I think it'd be fairly easy to PS out.
The leafhoppers are good you've got just the right amount of leaf in focus with them and there's enough in the background so its not just black but you get an idea of the rest of the plant being there.