Eucalyptus Psyllid vs Korean Water Scorpion

Side-by-side species comparison

Attribute Eucalyptus Psyllid Korean Water Scorpion
Scientific Name Blastopsylla occidentalis Laccotrephes japonensis
Order Hemiptera Hemiptera
Family Aphalaridae Nepidae
Size 1.5-2 mm 30-38 mm
Habitat Farmland Ponds & Lakes
Diet Herbivores Predators
Regions Australia, Africa, South America, Europe East Asia, Japan/Korea
Conservation Not Evaluated Least Concern

Eucalyptus Psyllid

An Australian psyllid that has become invasive in eucalyptus plantations worldwide. Nymphs produce distinctive white lerps on leaves.

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Did You Know?

It spread to every continent where eucalyptus is planted within just two decades.

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.

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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.