Korean Water Scorpion vs Claassenia Stonefly
Side-by-side species comparison
| Attribute | Korean Water Scorpion | Claassenia Stonefly |
|---|---|---|
| Scientific Name | Laccotrephes japonensis | Claassenia sabulosa |
| Order | Hemiptera | Plecoptera |
| Family | Nepidae | Perlidae |
| Size | 30-38 mm | 25-40 mm |
| Habitat | Ponds & Lakes | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | East Asia, Japan/Korea | Western North America |
| Conservation | Least Concern | Least Concern |
Korean Water Scorpion
A flat, leaf-shaped aquatic predator found in Japan and Korea. Despite its name, it is not a true scorpion but a true bug with raptorial forelegs. Breathes through a siphon-like tail appendage.
Did You Know?
The long breathing siphon at the rear works like a snorkel, allowing the water scorpion to breathe while remaining submerged and hidden among leaf litter.
Claassenia Stonefly
A large predatory stonefly with a mottled yellow and brown pattern. The nymphs are active nocturnal hunters that roam the stream bed seeking prey.
Did You Know?
Nymphs often crawl out of the water at night to hunt, making them vulnerable to bats and spiders.