Backswimmer vs Cardinal Beetle

Side-by-side species comparison

Attribute Backswimmer Cardinal Beetle
Scientific Name Notonecta glauca Pyrochroa coccinea
Order Hemiptera Coleoptera
Family Notonectidae Pyrochroidae
Size 14-16 mm 14-18mm
Habitat Ponds & Lakes Woodlands
Diet Predators Predators
Regions Europe, Asia Europe
Conservation Least Concern Least Concern

Backswimmer

An aquatic bug that swims upside down just beneath the water surface, using its long hind legs as oars. Its back is keeled like a boat hull and pale-colored for camouflage when viewed from below.

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Did You Know?

Backswimmers swim inverted with their pale backs facing downward, providing counter-shading camouflage against the bright sky when predators look up from below.

Cardinal Beetle

A striking flat beetle with a bright scarlet body and large black eyes. Larvae are predators under bark.

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Did You Know?

Named for its bright cardinal-red color that matches the robes of Roman Catholic cardinals.