Keeled Skimmer
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Orthetrum coerulescens
Scarcer in Britain.
In the Males the color of these stripes fades with age.
The abdomen is rather slim and shows an evident dorsal keel.
Males have blue-grey eyes and a blue pruinescence on the abdomen, developed with age.
Young Males are yellow-brown.
In the Females the abdomen is yellowish-brown, with a thin median black line and small transverse lines to the connections of the various segments.
The hyaline wings have yellow costa and a long yellow-brown pterostigma (about 4 mm).
They are usually hold well forward at rest.
Flies from June-August.