I say this all the time, but this is one of my favourite insect species. Both the males and females are an iridescent green. If you find yourself hiking alongside a woodland stream in Eastern North America during the summer, have a look for these gorgeous damselflies. You can often spot them flitting through the sunlight, and perching on the leaves of a green alder. Males often fly lazily around the females, before chasing off rival males. On cold mornings, you can get incredibly close and admire their elongate bodies, and black wings. If you’re lucky – you can spy them after a successful hunt. These voracious predators will sit stoic, tearing up smaller insects apart with their formidable jaws. They’re truly spectacular insects.