Chasing Fireflies, Beautiful Summertime

My friend Jackie came to visit for the weekend and we had a great time. Saturday was a leisurely day spent chasing and watching fireflies. Now, while watching the yard from the deck, we noticed a certain pattern. It seemed every time the fireflies lit up they were flying upward. We've yet to solve the mystery. Any idea why they do this?


Jackie is always one of my best subjects! A few more from the weekend: