Big-legged Bug vs Common Water Strider

Side-by-side species comparison

Attribute Big-legged Bug Common Water Strider
Scientific Name Acanthocephala terminalis Aquarius remigis
Order Hemiptera Hemiptera
Family Coreidae Gerridae
Size 17-23 mm 11-16 mm
Habitat Underground Rivers & Streams
Diet Sap Feeders Omnivores
Regions Eastern North America Throughout North America
Conservation Least Concern Least Concern

Big-legged Bug

A large, dark coreid bug found in eastern North America with prominently expanded hind tibiae. The hind femora of males are greatly swollen with large spines. It feeds on a wide variety of trees and shrubs.

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Did You Know?

The exaggerated hind legs of males serve as weapons and signals of fitness, with larger-legged males winning more fights and mates.

Common Water Strider

A slender dark brown insect that skates across the surface of streams and ponds using water surface tension. Its long middle and hind legs distribute its weight over the water film.

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Did You Know?

Tiny hydrophobic hairs on its legs trap air and repel water, allowing it to stand on the surface without breaking through.