The first species was the Dark Green Fritillary. I've seen this species once before in Cornwall, but on this walk I managed to see about half a dozen individuals. More information about this species can be found on Butterfly Conservation's website here.
Dark Green Fritillary
Marbled White (upperwing)
Marbled White (underwing)
Other species spotted during the walk were: Small Tortoiseshell (1), Small Heath (1) and Ringlet (20+).
As I said at the start of this post, I drew a blank with the SS Blues, so I'll pop back again, and hopefully add some pictures of this species next time.