Japanese Giant Water Bug vs High-altitude Water Boatman
Side-by-side species comparison
| Attribute | Japanese Giant Water Bug | High-altitude Water Boatman |
|---|---|---|
| Scientific Name | Lethocerus deyrolli | Sigara nigrolineata |
| Order | Hemiptera | Hemiptera |
| Family | Belostomatidae | Corixidae |
| Size | 48-65 mm | 5-7 mm body length |
| Habitat | Ponds & Lakes | Mountains |
| Diet | Predators | Detritivores |
| Regions | East Asia, Japan | Europe, Northern Asia |
| Conservation | Vulnerable | Least Concern |
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.
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.
High-altitude Water Boatman
An aquatic bug found in high-altitude ponds and alpine lakes. It swims upside down using its oar-like hind legs.
Did You Know?
Males produce underwater sounds by rubbing their front legs against their head to attract mates.