Here's a cool pic I found at a photgraphy gallery website. It's of a twelve spotted skimmer, or Libellula pulchella.
Isn't it beautiful? A couple of weeks ago I was outside on my deck at dusk. Suddenly a whizzing sound rushed past my head. As I turned my head upward I saw 3 or 4 dragonflies speeding about in circles around our back yard. Dinnertime, no doubt. They were amazing! With their speed and agility, they seem like small birds.
That was a great evening.