Backswimmer vs Field Digger Wasp

Side-by-side species comparison

Attribute Backswimmer Field Digger Wasp
Scientific Name Notonecta glauca Mellinus arvensis
Order Hemiptera Hymenoptera
Family Notonectidae Crabronidae
Size 14-16 mm 10-14mm
Habitat Ponds & Lakes Heathland
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.

Field Digger Wasp

A yellow and black wasp that nests in sandy soil and provisions each cell with paralyzed hoverflies.

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Did You Know?

Digs a nest burrow in bare sandy soil and stocks each cell with 5-8 precisely paralyzed hoverflies.