Banded demoiselle | Reserves and species

Scientific Name:

Calopteryx splendens

The banded demoiselle is a large damselfly which lives along the edges of slow-flowing rivers and canals, still ponds and lakes and amongst lush vegetation. So named for the distinctive 'fingerprint' mark on the males' wings, banded demoiselles are very territorial, performing fluttering display flights to win over females. They are on the wing from May to August.

How to identify:

Male banded demoiselles are metallic blue with broad, dark blue patches on each wing; females are metallic green with pale greenish wings. Of the UK's damselflies, only the banded demoiselle and similar beautiful demoiselle have coloured wings. The latter lives on smaller, faster-flowing rivers primarily in the west of the country and differs from the banded demoiselle by having almost entirely dark metallic wings.

Where to find it:

England, Wales and Northern Ireland.

How people can help:

The Wildlife Trusts manage many wetland nature reserves for the benefit of all kinds of wildlife, including the banded demoiselle. But these precious sites are under threat from development, drainage and climate change. You can help by supporting your local Trust and becoming a member; you'll find out about exciting wildlife happenings, events on your doorstep and volunteering opportunities and be helping local wildlife along the way.

Statistics:

Length: 4.5cm

Conservation status:

Common.

Did you know?:

Female banded demoiselles lay their eggs by injecting them into plant stems under the surface of the water. The eggs take about two weeks to hatch and the larvae take two years to develop, overwintering in the mud at the bottom of the river or pond.

Seasons:

Spring

Summer

When to see

Start date:

May

End date:

August

Image: