Hmm... Actually that's an interesting story idea. The Courting of Countness Libelle? All that, ahem, wetland activity...
Have you not read (and I kid you not) Wet Hot Allosaurus Summer by Lola Faust? Why can't dragonflies get some action?
We've got loads of different (though similar) shapes, sizes and colours of dragon flies flitting about over the dregs of the last heavy rain – but I've never seen anything like that! Maybe it's too hot.