The orange ladybird (Halyzia sedecimguttata) has 12-16 white spots. It overwinters in leaf litter or sheltered positions on trees and eats mildews. Considered until 1987 an indicator of ancient woodland, it has become widespread since it became common on sycamores; it has recently moved on to ash trees. It is attracted to light and is often found in moth-traps Ref; http://www.theguardian.com/environment/gallery/2013/jul/22/ladybird-species-harlequin-uk-insects
Seeing such lovely insects is one of the benefits of working with such a conservation work party.
The Hazel tree that I coppiced was 40 years old from counting the rings; long overdue to be coppiced.