Long-horned Caddisfly vs Water Scorpion

Side-by-side species comparison

Attribute Long-horned Caddisfly Water Scorpion
Scientific Name Mystacides longicornis Nepa cinerea
Order Trichoptera Hemiptera
Family Leptoceridae Nepidae
Size 7-10 mm body 18-22 mm
Habitat Ponds & Lakes Ponds & Lakes
Diet Detritivores Omnivores
Regions Europe Europe, Asia
Conservation Least Concern Least Concern

Long-horned Caddisfly

A slender caddisfly with antennae three times its body length.

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Did You Know?

Its extraordinarily long antennae are held forward during its weak fluttering flight.

Water Scorpion

A flat aquatic bug that lurks in shallow water resembling a dead leaf. It breathes through a long tail-like siphon that breaks the water surface.

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Did You Know?

Despite its name and scorpion-like raptorial forelegs, the water scorpion is a weak swimmer and instead ambushes prey from vegetation.