About Tau Emerald
A metallic emerald-green dragonfly with bright green eyes and a distinctive T-shaped yellow marking on the abdomen. It is one of the most common dragonflies in Australia. Males patrol relentlessly.
Did You Know?
The yellow tau-shaped mark on its abdomen gives it both its scientific and common name.
How to Identify Tau Emerald
Tau Emerald (Hemicordulia tau) belongs to the order Odonata, family Corduliidae. Adults typically measure 55-60mm.
Tau Emerald Habitat
Tau Emerald is found in ponds & lakes habitats, particularly across Oceania. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Tau Emerald Diet and Feeding
Tau Emerald is a predatory species that actively hunts and feeds on other insects and small invertebrates. As a predator, it helps control populations of pest species and maintains ecological balance.
Where Is Tau Emerald Found?
Tau Emerald can be found in Oceania, where it inhabits ponds & lakes environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Tau Emerald can be found
Is Tau Emerald Dangerous?
Tau Emerald is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Tau Emerald Role in Nature
Tau Emerald serves as a natural predator, helping to control populations of other insects. Predatory insects are valuable in both natural ecosystems and agriculture, where they reduce the numbers of pest species without the need for chemical pesticides.
Seasonal Activity
Frequently Asked Questions About Tau Emerald
What does Tau Emerald look like?
The Tau Emerald typically measures 55-60mm.
Where is Tau Emerald found?
The Tau Emerald is found in Oceania and typically inhabits ponds & lakes environments.
What does Tau Emerald eat?
The Tau Emerald is a predator that hunts and feeds on other insects and small invertebrates.
Is Tau Emerald dangerous to humans?
The Tau Emerald is generally harmless to humans. It does not bite or sting and poses no significant health risk.
What is an interesting fact about Tau Emerald?
The yellow tau-shaped mark on its abdomen gives it both its scientific and common name.
Cite This Page
APA:
InsectDiscover. (2026). Tau Emerald (Hemicordulia tau). Retrieved from https://insectdiscover.com/insect/tau-emerald
MLA:
"Tau Emerald." InsectDiscover, https://insectdiscover.com/insect/tau-emerald.