Notonectid

The Greater Waterboatman (Notonecta) swims upside down and is a voracious predator with piercing mouthparts.

Great Diving Beetle

The Great Diving beetle (Dytiscus) is a predator of small fish and other invertebrates

Mayfly

Adults of the Mayfly (eg. Baetis) are often seen flying above the brook in summer.

The Ramshorn Snail

The Ramshorn snail (eg. Planorbis) is often seen grazing algae from aquatic plants at the water’s edge.

 

The Pondskater

The Pond Skater (Gerris) forages for food on the water surface.