Tau Emerald vs Desert Threadtail Damselfly

Side-by-side species comparison

Attribute Tau Emerald Desert Threadtail Damselfly
Scientific Name Hemicordulia tau Protoneuridae sp.
Order Odonata Odonata
Family Corduliidae Coenagrionidae
Size 55-60mm 25-35 mm
Habitat Ponds & Lakes Deserts & Drylands
Diet Predators Omnivores
Regions Oceania North America
Conservation Least Concern Vulnerable

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.

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Did You Know?

The yellow tau-shaped mark on its abdomen gives it both its scientific and common name.

Desert Threadtail Damselfly

A tiny, thread-thin damselfly found near desert springs and oases. It has one of the most restricted habitats of any dragonfly, depending on permanent desert water.

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Did You Know?

Some desert threadtails exist in populations of fewer than 100 individuals at a single spring.