Damsel Field Guide
Dragon Field Guide
Coastal Petaltail
Unicorn Darner
Coastal Evening Darner
Blue-spotted Hawker
Australian Emperor
Australian Duskhawker 
Australian Tiger
Pale Hunter
Twin Spot Hunter
Yellow-tipped Tigertail
Royal Tigertail 
Australian Emerald
Fat-bellied Emerald
Tau Emerald 
Common Archtail
Black-headed Skimmer
Blue Skimmer
Fiery Skimmer
Slender Skimmer
Palemouth Shorttail
Scarlet Percher 
Wandering Percher
Black Faced Percher 
Red Arrow
Red Swamp Dragon 
Graphic Flutterer
Yellow-striped Flutterer
Red Baron
Short-tailed Duskdarter
Water Prince
Common Glider
More About Dragonfly
Dragonfly Head
Damselfly Wings
Life Cycle
Mating and Reproduction
Guest book


HEMICORDULIIDAE  - Emerald Dragonflies

The family Hemicorduliidae is newly separated from the family Corduliidae.  
Newly emerged Emerald 
Members in this family are medium to large size, which generally have metallic green, black or yellow body. They have emerald eyes when matured, but often brown in immature stage. When perched, they hang suspended vertically.
wpe6.jpg (37305 bytes)  DSC_2451.jpg (54858 bytes)
Larval exuviaes length 25mm                                
Emerald Dragonflies are strong flyer and spend most of the time flying in air during a sunny day. 

Australian Emerald
wpe8.jpg (25775 bytes)  wpe1.jpg (20439 bytes)
Hemicordulia australiae, female, male, body length 50mm
The Australian Emerald Dragonflies are strong flyer and spend most of the time flying in air. They are long and slender, with black pattern on yellow colour. The black patterns are shiny blue green under the sun. Their eyes and mouth occupy almost all their head with bright green in colour. More information please click here.
Fat-bellied Emerald, Clubbed Emerald, Broad-tailed Emerald
wpeE.jpg (21740 bytes)  wpe1A.jpg (26072 bytes)
Hemicordulia continentalis, female, male, body length 40mm, 
The Clubbed Emerald Dragonflies are medium in size, body length about 40mm. When we took those pictures, we through they were Australian Emerald, another Emerald dragonfly species which is common in Brisbane. Fat-bellied Emeralds can be distinguished from other Emerald dragonfly species by the male's strongly club-shaped abdomen. More information and pictures please click here.
Tau, Emerald, T-mark Emerald
Hemicordulia tau, body length 50mm
The dragonfly's body is yellow in colour with black pattern. They look very similar to another Emerald species Australian Emerald. They can usually be found in the same place. Because both of them never rest, it is difficult to distinguish between them. The second picture shows the close look of the dragonfly's face. Notice that when look at its face from its front, the is the inverse black 'T' mark on its 'nose'. This is why they are call T-Mark Emerald. More information please click here.

1. The Australian Dragonflies - CSIRO, Watson, Theisinger & Abbey,1991, p215.
2. A Field Guide to Dragonflies of South East Queensland - Ric Nattrass, 2006, p73.
3. The Complete Field Guide to Dragonflies of Australia - CSIRO, GŁnther Theischinger and John Hawking, 2006, p244.
4. HEMICORDULIIDAE - Australian Biological Resources Study, Department of the Environment and Water Resources, 2007. 

Back to Top



See us in our Home page. Download large pictures in our Wallpaper web page. Give us comments in our Blog, or send email to us. A great way to support us is to buy the CD from us.  
Last updated: February 18, 2008.