Common blue damselfly
Scientific name: Enallagma cyathigerum
Living up to its name the Common blue damselfly is both very common and very blue. It regularly visits gardens - try digging a wildlife-friendly pond to attract damselflies and dragonflies.
When to seeApril to September
AboutThe Common blue damselfly is our most common damselfly and can be found around almost any waterbody, or away from breeding sites in grassland and woodland. It is a regular visitor to gardens and is on the wing from April to September. The Common blue damselfly is an aggressive species: males will defend their females as they lay their eggs, both from their own kind and other species. As with other damselflies, when Common blues mate they form a 'mating wheel' in which the male clasps the female by the neck and she bends her body around to his reproductive organs.
How to identifyThe male Common blue damselfly is pale blue with bands of black along the body; the female is either blue or dull green, with distinctive black 'torpedo' markings. To identify the small blue damselflies, of which there are seven species in the UK, it helps to concentrate on the pattern on the second segment of the males' abdomen, just behind the thorax. In the Common blue damselfly, this segment is blue with a black button mushroom-shaped mark.
In our area
Like the very similar the Azure Damselfly, the Common Blue Damselfly is common and widespread in Montgomeryshire.