The pennant is obelisking - pointing its abdomen directly at the sun. They do this as a means of minimizing heat absorption on very hot days, and hot it was. Uber-dragonflier Jim Lemon and I ventured down to Jackson County yesterday, and hot and sunny it was. The temperature climbed into the 90's F by early afternoon, and it seemed like the humidity was 100%. Great for dragonfly action, not so great for humanoids.
Jim showed me a few special sites that I had heard about, but had not clapped eyes on until yesterday. Both places were amazing: exceptional in species diversity and rare species that were present. We were afield from around 9 am until 1 pm or so, when it really began to scorch. That's a typical schedule for me when things really begin to bake in summer. Out early, wrap it up in the early afternoon (at least sometimes).
We found 26 species of damselflies and dragonflies between the two sites that we visited. The pennants featured here were all (except the Halloween Pennant) at one tiny, quite ordinary pond. It was rimmed with common plants, primarily Soft Rush, Juncus effusus (an excellent dragonfly plant!), and was nearly round and rather deep. Just like scores of other farm ponds that dot the southeast Ohio landscape. This one was remarkable in its abundance of the small dragonflies in the genus Celithemis known as pennants. One of those species is a major rarity, and has only been found a few times in the state. That one - read on for a photo and information - was our primary target.