Nymphfest in a Teapot

I have been rooting coleus cuttings in a teapot and put them on my porch intending to pot them up for winter porch containers. As these things go they sat there for a couple of days and I remembered and set out to do the right thing (instead of forgetting entirely and find them rotting in a few more days)

As I poured the water out, I noticed black things wiggling inside the teapot. Too big for mosquitoes. What in the world? So, I stopped and took some pictures to enlarge and see what the heck was in there.

Not even wiggling worms – a nymph of some sort. I find these guys on the porch from time to time. They are big bugs, probably the size of my hand, beating their wings when touched – usually recalcitrant about going back outside and do not like to be moved. Somebody found a little water and laid some eggs in my teapot and now we have the most likely suspect as the creator of my nymphfest in the teapot:

There are 150 different Dragonflies in Florida, I am not sure what dragon or damselfly this is. As I was reading about them it seems they can be in the nymph stage for years. I am thinking about rehoming the ones in the teapot..