Distribution, habitats, phenology and conservation of New Caledonian Odonata Author Grand, Daniel Author Marinov, Milen Author Jourdan, Herve Author Cook, Carl Author Rouys, Sophie Author Mille, Christian Author Theuerkauf, Jörn text Zootaxa 2019 2019-07-19 4640 1 1 112 journal article 26165 10.11646/zootaxa.4640.1 1c74afbc-0c31-4b2b-b975-af79979613ab 1175-5326 3342242 434B2D49-EC2C-4246-8703-42C6CFD31B87 Family Isostictidae Fraser, 1955 This small family of 12 genera is recorded from Australasia (including Indonesia , Solomon Islands and New Caledonia , where the genus Isosticta comprises five endemic species). Isostictidae are easily distinguished from other New Caledonian Zygoptera by their very slender build, narrow wings and long and slender abdomen. The identification of the five species present is difficult and requires examination of several wing characters as well as details of the male abdominal appendages and the female pronotum. The adults remain near the forest creeks and streams, in which their larvae develop. Accompanied by males (tandem), females lay eggs in vegetation over and along the water. Their biology is unknown. As with other running water species, New Caledonian Isosticta are very sensitive to water pollution, deforestation and fires. It would be desirable to survey natural running freshwater habitats in the Nouméa area, where the water quality is constantly getting worse.