Click Beetle vs Green Sedge
Side-by-side species comparison
| Attribute | Click Beetle | Green Sedge |
|---|---|---|
| Scientific Name | Alaus oculatus | Rhyacophila dorsalis |
| Order | Coleoptera | Trichoptera |
| Family | Elateridae | Rhyacophilidae |
| Size | 25-45 mm | 10-14 mm |
| Habitat | Underground | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | North America | Europe, Asia |
| Conservation | Least Concern | Least Concern |
Click Beetle
Has a special mechanism that allows it to snap its body with a click, launching itself up to 30 cm into the air. The large eyespots on its thorax startle predators.
Did You Know?
Click beetles launch themselves into the air without using their legs — they use a peg-and-groove mechanism on their thorax that releases like a spring, reaching accelerations of 400g.
Green Sedge
A free-living caddisfly larva that does not build a case, instead roaming the streambed as an active predator. Adults have greenish wings.
Did You Know?
Unlike most caddisflies, green sedge larvae are caseless predators that hunt like underwater wolves among the stream cobbles.