New Species - Silver Washed Fritillary

It's been a great butterfly day today with loads of Marbled Whites, some brand new Commas looking very fine, large quantities of Meadow Browns and Large Whites and best of all some Silver Washed Fritillaries which are a new record for here. In fact that is not strictly true as I now think the butterfly I identified as a Dark Green Fritillary in 2014 was probably a Silver Washed. My photo was not quite good enough at the time to be sure but this photo (whilst still not very good - these butterflies move around a lot) is clearly that of a Silver Washed.