Scientific Classifications explained
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UK Nature > Damselflies > Enallagma cyathigerum
Scientific Name: Enallagma cyathigerum
Common Name: Common Blue Damselfly
Enallagma cyathigerum, more commonly known as the Common Blue Damselfly, can be easily mistaken for the Azure Damselfly (Coenagrion puella), but on the back and the thorax, the Common Blue Damselfly has more blue than black; for the Azure Damselfly it is the other way around.
The second segment of the thorax has a distinctive spot with a line below connecting to the third segment. Another difference can be observed when inspecting the side of the thorax. The Common Blue Damselfly has only one small black stripe there, while all other blue damselflies have two.
This small, brightly coloured damselfly is probably the most common of dragonflies and damselflies throughout much of Britain. It inhabits a wide range of habitats, from small ponds to rivers. They are especially common at lakes and reservoirs.
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