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Red-eyed Damselfly

©Ross Hoddinott/2020VISION

Red-eyed damselfly

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Scientific name: Erythromma najas
The Red-eyed damselfly is a small, but robust, damselfly of canals, ponds, lakes and slow-flowing rivers. As its name suggests, it has bright blood-red eyes, but a mostly black body.

Top facts

Stats

Length: 3.5cm

Conservation status

Common.

When to see

May to September

About

The Red-eyed damselfly is a small, but robust, damselfly of canals and slow-flowing rivers, ponds and lakes where it can often be seen sitting on lily pads. It is on the wing from the end of May through to August. When the larvae of damselflies are ready to turn into adults, they emerge from the water and moult their larval skin, leaving behind a cast known as an 'exuviae' - look for these on emergent vegetation around the edges of waterbodies.

What to look for

The Red-eyed damselfly is mostly black in colour, with a pale blue band at the end of the body, blue patches on the thorax, and bright, blood-red eyes. It is more robust than the similar Blue-tailed damselfly, which doesn't have red eyes. The Small Red-eyed damselfly is very similar, but a little smaller and more delicate, and has orangey-red eyes.

Where to find

Found in Southern and Central England, spreading north and into Wales.

Habitats

Did you know?

The closely related Small Red-eyed damselfly (Erythromma viridulum) was first recorded in this country in 1999 and is now found throughout South East England and parts of the Midlands.