Reasons for the devastating decline of this beautiful beetle are unknown (3). Present threats include shading mainly by willows, planted to help to stabilise the riverbank, or the introduced plant Himalayan balsam (Impatiens gludulifera) (3).
English Nature has funded a three-year study of the ecology of this beetle at the University of York. Hopes are that insights into the species resulting from this research will aid its conservation (3).
During construction of improved flood defences in part of the current range, tansy plants and beetles were removed, stored and relocated on the new defences. If this work is successful, English Nature may develop a long-term recovery programme for the species (3).
Embed this ARKive thumbnail link ("portlet") by copying and pasting the code below.