Lycaena helle (image) Helmholtz Association Share Print E-Mail Caption Lycaena helle (Violet Copper) are declining rapidly across Europe where it breeds in damp meadows where its food plants, Polygonum species (Bistort), are abundant. It needs very light grazing, avoiding the summer breeding period from April to August. Credit Chris van Swaay Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.