; order Odonata, suborder Zygoptera)
Family of damselflies which can be identified by the many antenodal veins on the wings. The insects are often very colourful, and fly by streams or rivers in shady areas. In the larva, the medial tracheal gill is reduced to a spike. The family occurs in the Old World tropics. More than 230 extant species have been described.
Subjects: Zoology and Animal Sciences.