Probably the most widespread species. One of many bluets whose identity is best confirmed in the hand. Easily identified by the black markings, e.g. the ‘mushroom’ on the male’s S2., the ‘torpedoes’ on the female’s S3-7 and the ‘single stripe’ on the thorax sides of both.


Total: 29-36 mm.
Abdomen: 22-28 mm.
Hindwing: 15-21 mm.


All types of ponds, lakes and also slow rivers. Huge densities occur in acid waters without fish.

Flight Season

From April to October.

Range and Status

Common in Denmark.