ODO Libellulidae Ladona deplanata
identified via books by Paulson, Dunkle, and Needham, Westfal & May, 3rd edition.
Burke Lake, Fairfax County, VA
1 June 2014
With some level of variation in the top of the thorax, I thought it might be two Ladona species, but I guess this is the only one that occurs in DE.