High-altitude Water Boatman vs Wheel Bug

Side-by-side species comparison

Attribute High-altitude Water Boatman Wheel Bug
Scientific Name Sigara nigrolineata Arilus cristatus
Order Hemiptera Hemiptera
Family Corixidae Reduviidae
Size 5-7 mm body length 28-36 mm
Habitat Mountains Orchards
Diet Detritivores Omnivores
Regions Europe, Northern Asia North America
Conservation Least Concern Least Concern

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.

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Did You Know?

Males produce underwater sounds by rubbing their front legs against their head to attract mates.

Wheel Bug

The largest assassin bug in North America, named for the distinctive cogwheel-shaped crest on its thorax. It delivers an extremely painful bite if handled.

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Did You Know?

Its bite injects cytolytic venom that dissolves tissue, producing pain reported to be worse than a wasp sting lasting for days.