Common Water Strider

Gerris lacustris

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Gerris lacustris, commonly known as the water strider, is a distinctive aquatic insect that moves across the water surface using surface tension. It is widespread across Europe and typically inhabits ponds, lakes, and slow-moving waters. Its slender body and long legs allow it to glide effortlessly without breaking the surface. It is a predator, feeding on insects trapped on the water surface, which it quickly captures. Water striders are often seen in small groups and are especially active during warmer months. They can rapidly escape threats thanks to their agility. They play an important role in freshwater ecosystems by controlling insect populations and serving as part of the food chain.