Downlooker Fly vs Agonum Marsh Ground Beetle

Side-by-side species comparison

Attribute Downlooker Fly Agonum Marsh Ground Beetle
Scientific Name Rhagio tringarius Agonum marginatum
Order Diptera Coleoptera
Family Rhagionidae Carabidae
Size 8-12mm 8-11 mm
Habitat Wetlands Wetlands
Diet Herbivores Herbivores
Regions Europe Europe, northern Asia
Conservation Least Concern Least Concern

Downlooker Fly

A slender predatory fly with spotted wings that perches head-downward on vegetation waiting for prey.

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Did You Know?

Always rests facing downward on stems and leaves, earning it the name downlooker or snipe fly.

Agonum Marsh Ground Beetle

A medium-sized metallic green ground beetle with pale-margined elytra found exclusively in wetland habitats. It runs rapidly on wet mud and vegetation near water.

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Did You Know?

It is so dependent on wetlands that its presence or absence is used by ecologists as an indicator of wetland habitat quality and hydrological integrity.