In the following contribution, descriptions and figures are given of the fullgrown nymphs of six Zygopterous species, which all have been reared. They were collected near Paramaribo in swamps, pools, ditches and rice fields and represent species of our lowland fauna near the coast. With one exception, they all are new, showing again how incomplete our knowledge of this group of aquatic insects is. Three of the mentioned species are not hitherto recorded from Surinam, viz.: Lestes tenuatus Ramb., Aeolagrion demararum Williamson, and Ischnura ramburi credula Hagen.