A Violet Copper butterfly (male), Lycaena helle (Lycaenidae), from Krähbachtal at Roche Rath, East Belgium.
The Violet Copper is a rare butterfly that is often confined to very small sites, where it may be seen in large numbers. It is found in swampy, wet grassland and rough vegetation bordering streams and lakes.
Lycaena helle occurs in scattered populations from the north of Norway to the Pyrenees and from the east of Belgium to East Asia. It is a species classified as Endangered on the IUCN Red List.
Photo credit: ©Frank Vassen