Pale Evening Dun vs Desert Threadtail Damselfly
Side-by-side species comparison
| Attribute | Pale Evening Dun | Desert Threadtail Damselfly |
|---|---|---|
| Scientific Name | Heptagenia adaequata | Protoneuridae sp. |
| Order | Ephemeroptera | Odonata |
| Family | Heptageniidae | Coenagrionidae |
| Size | 8-12 mm | 25-35 mm |
| Habitat | Rivers & Streams | Deserts & Drylands |
| Diet | Omnivores | Omnivores |
| Regions | Europe | North America |
| Conservation | Least Concern | Vulnerable |
Pale Evening Dun
A flat-bodied mayfly whose nymphs press tightly against rocks in swift currents. Adults emerge at dusk during summer months.
Did You Know?
Its extremely flattened body allows it to resist currents that would sweep away most other insects.
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.
Did You Know?
Some desert threadtails exist in populations of fewer than 100 individuals at a single spring.