The Marbled White Butterfly can appear in large colonies on chalk and limestone on flower-rich grasslands, which is why we saw these beautiful individuals on Old Winchester Hill in the South Downs National Park today. They are more closely related to the Browns than the Whites and love basking in early sun during July and August. Marbled Whites are the only black and white butterfly remotely
like this in the UK, which explains why I could identify it despite never having seen in before, except in books i poured over as a child! Conditions: A cooling breeze eased the very hot, unrelenting sun. Temperature: Max 25 Min 11 C.