Dark Bordered Beauty Moth
The caterpillars of this moth are brown or purplish-brown in colour with a paler underside. When they turn to moths the males are darker yellow, almost orange with a purplish-grey border – which is where the name comes from. The female a paler yellow with the same border. They have a small black spot on their forewings.
The Dark Bordered Beauty Moth can be seen from the end of June to September and the caterpillars from May to July. They are in egg form over winter.
There are currently thought to be only four known populations of these moths in the UK, although they are popular throughout Europe.