Which has 2 sets of wings, the dragonfly or a damselfly.?
Both have 2 sets of wings but damselflies fold their wings when at rest. The damselfly is distinguished from dragonflies by its laterally projecting eyes and petiolate (“having a stalk or stem”) wings folded above the body when at rest. A dragonfly is larger and stouter than damselflies and holds the wings horizontally when at rest.