The Calopterygidae are a family of damselflies, the suborder Zygoptera. They are commonly known as the broad-winged damselflies, demoiselles, or jewelwings. These rather large damselflies have wingspans of 50–80 mm (compared to about 44 mm in the common bluetail damselfly, Ischnura elegans) and are often metallic-coloured. The family contains some 150 species. The Calopterygidae are found on every continent except Australia, New Zealand and Antarctica. They live along rivers and streams.