Tau Emerald vs Northern Damselfly
Side-by-side species comparison
| Attribute | Tau Emerald | Northern Damselfly |
|---|---|---|
| Scientific Name | Hemicordulia tau | Coenagrion johanssoni |
| Order | Odonata | Odonata |
| Family | Corduliidae | Coenagrionidae |
| Size | 55-60mm | 28-35 mm body length |
| Habitat | Ponds & Lakes | Wetlands |
| Diet | Predators | Omnivores |
| Regions | Oceania | Northern Scandinavia, Finland, northern Russia, Siberia |
| Conservation | Least Concern | Least Concern |
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.
Northern Damselfly
A delicate blue and black damselfly with narrow wings held together above the body at rest. Males have a distinctive blue pattern on the abdomen. It breeds in bog pools and marshy lakeshores.
Did You Know?
This damselfly has one of the most northerly distributions of any odonate, surviving in habitats where the breeding season lasts only a few weeks.