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A damselfly gazes through a hole in a vibrant green leaf, offering a rare glimpse into its delicate world in Sundarganj, Bangladesh.

For over 20 years, a research team at Lund University in Sweden has studied the common bluetail damselfly.

The most underrepresented species, the researchers found, include critically endangered ones like the dinosaur ant of southern Australia, the crimson Hawaiian damselfly, and the harnessed tiger moth found in eastern North America.

In other words, when rural or city damselfly and flea populations are matched, there seems to be more balance—as you’d expect if two populations are evolving in step with each other.

Species expanding their range include the emperor dragonfly, migrant hawker, ruddy darter, black-tailed skimmer and small red-eyed damselfly.