First record of Odonata nymphs from Karun River, south-west Iran

The Odonata are well known insects with widely distributed species around the world. Both adults and larvae are predators and consume every living pray in suitable size; they can get hold of using their functional labium, such as protozoans, crustaceans, mosquito larvae and tadpols (Norling & Sahlén, 2005). Odonata fauna is poorly known in Iran and most of the previous studies deal with northern parts of the country (Ebrahimi et al., 2009; Heidari & Dumont, 2009 and Sadeghi, 2010). Most of the published literatures on Odonata of Iran have been based on adult specimens (e.g. Kiani & Minaei, 2009; Ebrahimi et al., 2009 and Sadeghi, 2010) and nymphs of Iranian Odonata have been less studied so far.