A Meadow Argus. This was a hand held shot on an Aster flower moving in the wind and yet you  can see down to individual scale level.
The butterfly obliged by laying its wings quite flat so I could angle it in the focal plane and catch a reasonable focus.  Even some bokeh effect of the flower in the background (always wanted to use that word).
http://en.wikipedia.org/wiki/Meadow_Argus