A permanent pond resident, Hydrometra stagnorum ^{[1, 2]} a bug from the Marsh treaders (Hydrometridae) family.

Every year this bug resides in the pond in fluctuating numbers. It is a predator that roams the watersurface.

The specimen below misses its right hindleg.

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Literature

¹ Nederlands Soortenregister

² Waarneming.nl, Taxonomie Hydrometridae (Vijverlopers)