Ongoing, feel free to contact me with omitted species and evidence of their availability past or present in the UK. Thanks, Viv.
Parthenos sylvia, the clipper, is a species of nymphalid butterfly found in South and South-East Asia, mostly in forested areas. The clipper is a fast-flying butterfly and has a habit of flying with its wings flapping stiffly between the horizontal position and a few degrees below the horizontal. It may glide between spurts of flapping.