|Male Ischnura heterosticta|
|Female Ischnura heterosticta|
Ischnura heterosticta, one of at least two species with the common name common bluetail, is a common Australian damselfly of the family Coenagrionidae. It is the largest of the six Ischnura species in Australia. They are generally found near slow-running or still water. The species is also salt tolerant. It flies from October to March.
The common bluetail is a small damselfly. Most males have blue eyes, a blue thorax, and a blue ringed tail. The females have a variety of forms including green, brown, black, and a form with very similar colourings to the male.
It is found from north of Brisbane, down the east coast, through Victoria to South Australia. It is also found in the south west of Western Australia.
- Tillyard, R J (1905). "On dimorphism in the female of Ischnura heterosticta, Burm". Proceedings of the Linnean Society of New South Wales 30: 302–306.
- Brisbane Insects - Common Bluetail Damselfly - Ischnura heterosticta
- Kefford, Ben J. (2005-08-22). "Growth of the damselfly Ischnura heterosticta is better in saline water than freshwater" (PDF). Retrieved 2008-12-28.
- Dragonflies - Common Bluetail, Ischnura heterosticta
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