Banded Demoiselle (Calopteryx splendens)

This beautiful damselfly prefers slower moving lowland rivers and canals, and is hard to miss as it flies out over water or perches on adjacent vegetation.  The males are territorial and will chase other males out of their chosen patch, in which they will mate and the females, with their metallic green bodies and greenish brown wings, will lay eggs.  They are on the wing from early June to mid August.