Theo Bosboom / Blue damselflies (Coenagrionidae) resting in heather flowers in dawn twilight, Hatertse vennen near Nijmegen, the Netherlands, August.

Theo Bosboom / Emerald damselflies (Lestes sponsa) warming up in the first rays of the sun, Hatertse vennen, the Netherlands, June.

Theo Bosboom / Large group of Common blue damselflies (Enallagma cyathigerum) including mating couples - on stems of grass, Hondenven, Tubbergen, The Netherlands. June.

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) group gathering over water, Hondenven, Tubbergen, Netherlands, July.

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) group reflected flying over water and perching on reeds, Hondenven, Tubbergen, Netherlands, July.

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) group reflected in water, flying and perching on reeds - they sit on stems and fly around the water, looking for prey and females to mate. The stems ar...

Theo Bosboom / Emerald damselflies (Lestes sponsa) mating on the reed along a fen, Hondeven, east Holland, August

Theo Bosboom,Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) flying over water, in a fen Hondeven, east Holland, June

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) flying over the water to rest on plant stem, in a fen, Hondeven, Holland, July

Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) flying over the water to rest on plant stem, in a fen, Hondeven, Holland, July

Theo Bosboom,Theo Bosboom / Common blue damselflies (Enallagma cyathigerum) flying over the water to rest on plant stem, in a fen, Hondeven, Holland, July

Jussi Murtosaari,Jussi Murtosaari / Banded Demoiselle (Calopteryx splendens) male in habitat, Finland, June