Jersey Tiger Moth Euplagia quadripunctaria

Jersey Tiger moth
Jersey Tiger moth red underwing
The Jersey Tiger, active by day and by night, is found in the Channel Islands; some are also present in Devon, Dorset and Somerset and a small but growing population exists in London, -- these in northwest London.
Jersey Tiger moth
Jersey Tiger moth
Jersey Tiger moth yellow underwing
Usually the underwings are red with black spots but sometimes they have a yellow background. Wingspan 42-52mm; UK flight time Jul-Sep.
Jersey Tiger moth
Jersey Tiger moth
Above two photos from southeast London by Bob Clark (copyright Bob Clark). As usual, Bob manages to get the subject to pose on his hand.