Taken on 27th July 2006, Lincoln UK.
It has a bright yellow tail, and three faint black marks near the inner edges of the wings.
On 28th July 2008. The male has large, feathered antennae. Lincoln UK.
On 17th July 2008, showing the tail.
On 25th May 2008, the caterpillar feeding on Hawthorn.
Not sure which is the head end!
As it stretches it's 'ends' different patterns emerge.