first record of odonata nymphs from karun river, south-west iran

odonata fauna is poorly known in iran and most of the previous studies deal with northern parts of the country, studying adult specimens. we sampled karun river for aquatic insects in the city of ahvaz in south-west of iran during 2009–2011. as a result, 40 nymphs of one damselfly species and four dragonfly species of the order odonata comprising five genera from four families were recorded. all of the species is newly reported from khuzestan province. species list with their distribution data in iran and the material examined are presented.