The occurrence of oligochaetes species living on larvae of Odonata is reported for the first time. There were found Nais variabilis (Piguet, 1906) (Oligochaeta: Naididae) and Chaetogaster diastrophus (Gruithuisen, 1828) (Oligochaeta: Naididae) living on Elasmothemis cannacrioides (Calvert, 1906) (Anisoptera: Libellulidae) and on Mnesarete (Cowley, 1934) (Zygoptera: Calopterygidae).
Oligochaeta; Odonata larvae; occurrence