Madagascar Spittle Bug vs Japanese Giant Water Bug

Side-by-side species comparison

Attribute Madagascar Spittle Bug Japanese Giant Water Bug
Scientific Name Bourgoinrana madagascariensis Lethocerus deyrolli
Order Hemiptera Hemiptera
Family Cercopidae Belostomatidae
Size 8-12 mm 48-65 mm
Habitat Meadows Ponds & Lakes
Diet Sap Feeders Predators
Regions Madagascar East Asia, Japan
Conservation Least Concern Vulnerable

Madagascar Spittle Bug

A small, dark planthopper that produces frothy spittle masses on plant stems as a nymph. Adults are dark brown to black with subtle banded markings on the wings.

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Did You Know?

Nymphs surround themselves with a mass of frothy bubbles made from excreted xylem fluid, which protects them from desiccation and predators.

Japanese Giant Water Bug

Known as 'ta-garame' in Japanese, this is one of Japan's largest aquatic insects. A fearsome ambush predator that can catch small fish and frogs. Has declined dramatically due to habitat loss.

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Did You Know?

Males of this species guard the eggs, which the female glues to emergent vegetation above water, by periodically climbing up to moisten them.