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Blue Riverdamsel - Pseudagrion microcephalum

FAMILY COENAGRIONIDAE

This page contains information and pictures about Blue Riverdamsels that we found in the Brisbane area, Queensland, Australia. They are also known as Blue Sprite Damselflies.
 
Male, body length 38mm
 
Blue Sprite Damselflies are one of the most common damselflies found in Brisbane waters. They can easily be found near running water or still water. They usually rest on the plants either in the middle of ponds or at the water edges. In a sunny winter day, they may be the only damselfly still flying over the water, although only a few of them can be seen. In summer, large number of them completing for a good perching position with other damselflies. The pictures in this page are mostly taken at Wishart along Bulimba Creek and at the large ponds in Mt Coot-tha Botanic Garden.
 
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Male                                                                     Female 
 
The male damselfly is brightly blue  in colour with black pattern on abdomen. Its head, face and eyes are blue too.
Quite a number of damselfly species found in Brisbane are in blue colour and look similar. They includes the Common Bluetail and the Eastern Dart. Our Australian Dragonfly Society President, Deniss Reeves, advised that we can tell if it is a Blue Riverdamsel by its Blue eyes and bright face. The male Blue Riverdamsel has its blue thorax with black marks. Its long and slender abdomen is black in colour with blue rings. There is the blue tip at the end of abdomen. 
 
The females are pale blue-grey to greyish-green in colour. When Blue Riverdamsels are at rest, they held their wings closely folded up vertically over their thorax. 
 
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Above pictures showing the male and female Blue Riverdamsels in tandem position. More information about damselfly reproduction can be found on the Mating Behaviour pages.
 
  
Female laying eggs with male still in tandem position 
After mating, the female will return to the water and lay her eggs, usually with the male still in tandem position. 
 
  
 
Damselflies lay their eggs in the plants under the surface of water. Female damselflies have their blade-like ovipositor for making an opening in the plant for her eggs. Female lays eggs usually with male still in tandem, or sometimes alone.
 
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A newly emerged Blue Riverdamsel, its body colour is not normal yet.     
 
Wings of Blue Sprite Damselfly 

Reference:
1. The Australian Dragonflies - CSIRO, Watson, Theisinger & Abbey,1991, p133.
2. A Field Guide to Dragonflies of South East Queensland - Ric Nattrass, 2006, p40.
3. The Complete Field Guide to Dragonflies of Australia - CSIRO, GŁnther Theischinger and John Hawking, 2006, p84.

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Up ] Gold-fronted Riverdamsel ] [ Blue Riverdamsel ] Flame-headed Riverdamsel ] Redtail ] Red and Blue ] Eastern Billabongfly ] Aurora Bluetail ] Common Bluetail ] Red-tipped Shadefly ] Gygmy Whisp ] Red-rumped Whisp ]

 
 
                                                

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Last updated: October 10, 2009.