Name: Common Blue Damselfly
Scientific name: Enallagma cyathigerum
Nature Stars: 20
About: A small blue damselfly, about 6 cm long. Pale blue with bands of black along the body. Our commonest damselfly, found around almost any water body and can also be found away from breeding sites in grassland and woodland. On the wing from the end of May through to September.
How to identify: To identify the small blue damselflies, of which there are seven species in Britain, you should concentrate on the pattern on the first segment of the body on the males, just behind the thorax. In Common Blue Damselfly, this segment is blue with a black lollipop-tree-shaped mark.
Fantastic fact: When it is cold, the blue males change colour and turn grey, perhaps as a way of trying to warm up.
Photograph credit: Jamie Hall