
Purple Emperor
Not found in the UK. There are two forms of this magnificent butterfly - the blue form ilia and the orange-brown form clytie, the latter is more commonly encountered in southern regions of its distribution.
Caterpillars feed on Populus species, very rarely also on Salix. The caterpillars are usually found on Aspen (Populus tremula).
Woodland and forests often near rivers or damp areas.