Tau emerald
| Tau emerald | |
|---|---|
 ![]()  | |
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Odonata | 
| Family: | Corduliidae | 
| Genus: | Hemicordulia | 
| Species: | H. tau | 
| Binomial name | |
|  Hemicordulia tau Selys, 1871  | |
The tau emerald (Hemicordulia tau), is a species of dragonfly in the family Corduliidae. It is found in all parts of Australia except northern Queensland and north-western Western Australia.[1] The species was first described by Edmond de Sélys Longchamps in 1871.
They are medium-sized dragonflies, reaching a body length of about 50 mm.[2]

Pair of adults mating
References
- ↑ Günther Theischinger and John Hawking (2006). The Complete Field Guide To Dragonflies Of Australia. Collingwood, Victoria: CSIRO Publishing. p. 249.
 - ↑ http://www.brisbaneinsects.com/brisbane_dragons/TMark.htm
 
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