Migrant Hawker, dragonfly, Cornwall, The LizardSpotted in a Lizard garden in the summer, this dragonfly species is on the wing well into the autumn, and can often be seen away from the ponds where it breeds.
Photo: Ray Surridge

MIGRANT HAWKER

Scientific name: Aeshna mixta

What to look for:

Colouring and appearance: Distinctive yellow golf tee-shaped mark at the top of the abdomen. Males have blue pairs of spots on the abdomen and blue eyes. Females are brown with brownish eyes, and also with pairs of spots on the abdomen, but the spots are usually smaller and yellow, though sometimes blue.
Size: Length, 60 to 65 mm.
Where: This species breeds in lakes, ponds and even brackish water, but can often be seen flying at some distance from water. Its range in the UK extends into northern England. Globally, it is distributed from central and southern Europe, into northern Africa, the Middle East, Asia, China and Japan.
When: Flies from July to October
Similar species: Common Hawker (Aeshna juncea). The Migrant Hawker has more subdued colouring and, unlike A. juncea, the leading edge (costa) of each wing is brown. The Migrant is also distinguished from the Common Hawker by the small golf tee-shaped triangle at the top (second segment) of the abdomen (see photos below).

Migrant Hawker, dragonfly, Cornwall, The LizardEasily confused superficially with its larger relative, the Common Hawker, the Migrant Hawker can be distinguished by the brown costa (leading edge of the wings, which are yellow in the Common Hawker). The Migrant Hawker also has a bit more ‘staying power’, often flying into November.

The UK distribution of the Migrant Hawker has been extending northwards since the middle of the twentieth century, before which it was a rare migrant. Now resident and breeding here, it has more recently had its first records on the Isle of Man and in Ireland (1998 and 2000, respectively).

Unlike some other dragonfly species, the Migrant Hawker is not territorial, and can sometimes be seen in feeding swarms, and often far from its watery breeding grounds as it hunts for food. Similar to other Hawker species, this is a fast-flying species that catches prey on the wing.

Migrant Hawker, dragonfly, Cornwall, The Lizard

 

 

Did you know…?

…Hawker dragonflies can hover and fly backwards.

… Dragonflies do not go through a pupal stage in their development, unlike butterflies. The adult emerges from the final moult of the larval stage, which takes place above the waterbody surface. The website of the British Dragonfly Society has lots of information about the biology and ecology of dragonflies.

 

 

 

 

More information and references:

Chinery, M., 2005. Collins Complete Guide to British Insects. Collins, London.

Websites:

British Dragonfly Society

Buglife

The Wildlife Trusts

Wikipedia

Published: September 2017
Author: Amanda Scott
Photos: Ray Surridge

Find out about other invertebrates you can spot on The Lizard.