Pale Evening Dun vs Whip-scorpion Rove Beetle
Side-by-side species comparison
| Attribute | Pale Evening Dun | Whip-scorpion Rove Beetle |
|---|---|---|
| Scientific Name | Heptagenia adaequata | Paederus amazonicus |
| Order | Ephemeroptera | Coleoptera |
| Family | Heptageniidae | Staphylinidae |
| Size | 8-12 mm | 7-9 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Omnivores | Herbivores |
| Regions | Europe | Amazon Basin, tropical South America |
| Conservation | Least Concern | Least Concern |
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.
Whip-scorpion Rove Beetle
A brightly colored Amazonian rove beetle with orange and metallic blue markings typical of the Paederus genus. It thrives in tropical riverine habitats where it hunts small arthropods in vegetation.
Did You Know?
Amazonian indigenous peoples have long known to avoid crushing this beetle on skin, having independently discovered the dermatitis-causing properties of pederin.