Australian Emerald vs Snail-Case Caddisfly
Side-by-side species comparison
| Attribute | Australian Emerald | Snail-Case Caddisfly |
|---|---|---|
| Scientific Name | Hemicordulia australiae | Helicopsyche mexicana |
| Order | Odonata | Trichoptera |
| Family | Corduliidae | Helicopsychidae |
| Size | Body 4-5 cm; wingspan 6-7 cm | 5-7 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Omnivores |
| Regions | Australia, New Zealand | North America, Central America |
| Conservation | Least Concern | Least Concern |
Australian Emerald
A metallic green-eyed dragonfly common near ponds and slow streams across Australia. It hovers sentrylike over water, earning its alternate name of Sentry Dragonfly.
Did You Know?
It is sometimes called the Sentry Dragonfly because it hovers motionless over water for extended periods.
Snail-Case Caddisfly
A remarkable caddisfly whose larva builds a coiled sand-grain case resembling a tiny snail shell. Found in warm streams of the American Southwest.
Did You Know?
Cases so closely resemble snail shells that they were originally described as a new genus of freshwater snail.