The damselfly has a wingspan of 60 to 70 millimetres and a body length of about 50 millimetres. Damselflies can be distinguished from dragonflies by the fact that they hold their wings together over their back when at rest. The male has dark metallic blue-green wings and the female has golden-bronze wings.
Adults can be found in different types of wetlands and flowing watercourses. The larvae are typically found in flowing streams, holding on to the stems and leaves of water plants. They can be found throughout most of Europe.
Adults feed on various kinds of flying insects, and the larvae feed on insect larvae, such as those of midges and mayflies.