With daily temperatures soaring into the 90s and above, we Georgians have been spending as much time as possible inside our comfortable air-conditioned homes. Without the luxury of having a cool refuge to escape to when the hot sun is beating down, our backyard wildlife neighbors have to employ other means to beat the heat. Recently my wife spotted a Halloween pennant dragonfly doing just that.
A couple of weeks ago while watering the flowers on our deck she noticed a Halloween pennant dragonfly perched on the dead branch of a red salvia plant. Instead of perching with its wings parallel to the ground, the beautiful gold dragonfly had arranged its body so that its tail was pointing upwards toward the heavens. At first, she thought the insect just happened to land in the awkward position. However, several times during the next few minutes the dragonfly flew off and then returned to the same spot. Each time it landed in the normal manner and then quickly rearranged its body so its abdomen faced upward like an obelisk. This made it look much like a miniature Washington Monument.
It seems the Halloween pennant was employing an odd strategy to keep cool. By positioning itself with its abdomen pointing skyward, it was reducing the surface area of its body exposed that was exposed to the sun’s ray. With less direct sunlight striking its body, it kept itself cooler than it would have been if it perched in a normal position.