FROM ROY PREM
I have also emailed the Herts and Middlesex Branch about a possible sighting of Apatura iris in Hampstead Heath.
I note that there have been a few sightings since 2015.
On 21st July I am reasonably sure I saw one maybe two iris near the Leg of Mutton Pond/Deer enclosure/Childrens play area of Golders Hill Park/Hampstead Heath.
They were clearly large Nymphalids and I have seen iris numerous times, they could have been escapees of a tropical nymphalid (eg Parthenos Sylvia) from the nearby Butterfly Green house in Golders Hill Park.
They flew between large Oaks at 25m.
I cannot be completely sure but it is possible that they could be.
There are possible breeding areas nearby, I know the area very well as I grew up in Golders Green
Let us hope that this magnificent butterfly is extending its range, the good warm weather recently I believe is ideal weather for species extending their ranges