; order Odonata, suborder Zygoptera)
Family of damselflies in which the basal cross-vein of each wing traverses the cell bounded by the second branch of the cubitus, the arculus, and the hind margin of the wing. There are also many postnodals. There are more than 130 described extant species found throughout Asia and Central and S. America.
Subjects: Zoology and Animal Sciences.