A new day, a new species of butterfly

One of the few advantages of rummaging around in the soil and stones of our wall repair - an all too common occurrence some would say - is that I found this moribund butterfly. Its sad state of health did at least make it easy to photograph and identify.
On account of the sharp angle on the hind-wing, I am pretty sure it is a Weaver's Fritillary, named after a 19th century English entomologist who caught one at Tamworth. That said there seems to be some obfuscation about the species occurrences in Britain and it currently is not a species deemed to have occurred naturally there, although all it would require is the short hop across the Channel, the same hop as we will be doing in a fortnight today.