Red-veined darter

The red veins in the boy's wings are the easiest way to tell it apart from other red dragonflies.

Its eyes are brown on top and blue grey underneath.

Mum and dad fly joined together while she dips her tail into the water to lay eggs. Sometimes they even try it in salty sea water, where the eggs cannot survive.

In warm places it can raise two families in one year, which most European dragonflies cannot do.

Since the 1990s it has been spreading north to places like Britain, Sweden and Finland.