Beautiful Demoiselle (Calopteryx virgo)
Unlike the Banded Demoiselle, this damselfly prefers faster flowing, clearer water such as the gravelly bottomed stream running through Hillditch pool. Its behaviour is similarly territorial, with an elaborate courtship. The female of this species is much plainer, with a greenish bronze body, and brown to russet wings. The flight period is from late May to late July.