Blue-winged Rove Beetle vs Korean Water Scorpion
Side-by-side species comparison
| Attribute | Blue-winged Rove Beetle | Korean Water Scorpion |
|---|---|---|
| Scientific Name | Platydracus chalcocephalus | Laccotrephes japonensis |
| Order | Coleoptera | Hemiptera |
| Family | Staphylinidae | Nepidae |
| Size | 12-17 mm | 30-38 mm |
| Habitat | Grasslands | Ponds & Lakes |
| Diet | Predators | Predators |
| Regions | Eastern North America | East Asia, Japan/Korea |
| Conservation | Least Concern | Least Concern |
Blue-winged Rove Beetle
A handsome rove beetle with a metallic blue-green head and pronotum contrasting with brown elytra. It is found in wooded areas and is a capable flier attracted to lights at night.
Did You Know?
The metallic coloration of its head is produced by nanostructures in the cuticle that interfere with light, similar to how a soap bubble creates colors.
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.