I just googled images for dragonfly & mosquito larvae, and the bad news is they definitely look more like mosquito larvae....
I have an oscar and two algae eaters, plus two crabs that have made themselves at home in my pond. Will any of these eat the larvae? Otherwise, if I were to get some mosquito fish, would my oscar/crabs eat them, or vice versa?
Pity, it would have been nice to have some dragonflies growing up in my pond....