Yesterday at Occoquan Regional Park I spotted this female Common Whitetail dragonfly (Plathemis lydia) as she was depositing eggs into the water. I managed to capture a short series of shots that help to illustrate what she was doing.
She would fly low over the water as in the first shot and then hover over what she determined was a good spot. When she was ready, she dipped the tip of her abdomen into the water, creating the circular ripples that you see in the second image. Immediately she returned to her starting position as the ripples began to spread. Sometimes she would repeat this sequence several times at the same spot, while other times she would move on to another spot.
What was the male doing at this time? A male Common Whitetail dragonfly, which I assume was the one with which she had just mated, patrolled a few feet directly over her as she was depositing the eggs. I am pretty sure that he was there to deter or fight off potential rivals that might try to interfere with the perpetuation of his genes.
© Michael Q. Powell. All rights reserved.
Mike Powell 
Great captures!
These are amazing photos Mike! Bravo!
Thanks, Pete. I happened to be at the right place at the water’s edge at the right moment.
Great capture, Mike.