This butterfly I notice has a very rapid flight normally seen flying solo along forest and not a very good subject for photography but I get lucky sometimes. A rather common species often encountered during a hot sunny afternoon in a heavily forested environment.
It has dots and lines at the hind wings on a brown background with black tipped fore wings, it certainly stands out along the more mundane species I always see flying close by. Attempting to identify this species was also challenging as comparison with photos of identified Autumn leaf butterfly shows minor differences in wing markings, my conclusion is that it is a sub-species of the Autumn leaf unique to this particular region of the country.