The larvae of Hygrobates longipalpis, H. nigromaculatus and H. trigonicus are described, the latter for the first time. The characteristics of H. longipalpis and H. nigromaculatus larvae are compared with descriptions in existing literature. Data on laying period, characteristics of the eggs and egg hatching time for the three species are given. The larvae of H. nigromaculatus develop into nymphs without a parasitic phase.