Photo and caption by Anuruddha Lokuhapuarachchi
The male and female Common Bluetail Damselfly (Ischnura heterosticta) in wheel position at Llanishen Reservoir, Cardiff, UK, June 16, 2011. The female then curls her abdomen forwards to contact with the secondary genitalia in order to receive sperm. The male and female form the heart shape wheel and it is known as Wheel Position. Notice that in damselfly male is holding by female's neck (prothorax) while in dragonfly is holding the back her head.
Location: Llanishen Reservoir, Cardiff, United Kingdom