When I was a lad the butterfly I remember most is the Small Tortoiseshell. I'm sure there were lots of whites etc but the Small Tortoiseshell was the one I remember flitting about the garden and sitting on the marigolds and dahlias.
Over the years its numbers have declined significant and so when I see one (like the one snapped in the link above on Sunday) it is a pleasurable experience.
The charity Butterfly Conservation was worried that Small Tortoiseshells were a dying breed after many fell victim to a parasitic fly. However 100's have been seen on the east coast during August and September, it is thought better weather helped them cross the channel and now these butterflies are moving inland.
We now have to hope that this influx has a positive impact on numbers next spring.