Isostictidae Fraser, 1955

Grand, Daniel, Marinov, Milen, Jourdan, Herve, Cook, Carl, Rouys, Sophie, Mille, Christian & Theuerkauf, Jörn, 2019, Distribution, habitats, phenology and conservation of New Caledonian Odonata, Zootaxa 4640 (1), pp. 1-112 : 32

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.