Korean Water Scorpion vs Pear Psylla
Side-by-side species comparison
| Attribute | Korean Water Scorpion | Pear Psylla |
|---|---|---|
| Scientific Name | Laccotrephes japonensis | Cacopsylla pyri |
| Order | Hemiptera | Hemiptera |
| Family | Nepidae | Psyllidae |
| Size | 30-38 mm | 2-3 mm |
| Habitat | Ponds & Lakes | Orchards |
| Diet | Predators | Fruit Feeders |
| Regions | East Asia, Japan/Korea | Europe, Western North America |
| Conservation | Least Concern | Not Evaluated |
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.
Pear Psylla
A small winged psyllid that is the most important insect pest of European pear orchards. Nymphs produce copious honeydew that causes fruit russeting and sooty mold.
Did You Know?
It can inject a toxin while feeding that causes a condition called psylla shock, which can kill young pear trees.