A damselfly is an insect belonging to the order Odonata, which also includes dragonflies. They are characterized by their slender bodies, large eyes, and two pairs of wings that are usually held together above their bodies when at rest. Damselflies are often found near freshwater habitats like ponds and streams, where they lay their eggs. These insects are important for the ecosystem as they help control mosquito populations and serve as food for various birds and fish. Damselflies undergo a life cycle that includes an aquatic nymph stage, where they live underwater before emerging as adults.