On the 29th September last year I saw my first Harlequin Ladybird. Eventually about 40 spent the winter hibernating in our door frame, alongside native ladybirds. They woke in the spring and dispersed. This species has expanded its range dramatically in a few years, first reaching Southern England in 2004. It is originally an Asian species which was introduced to North America and later Continental Europe because it eats more crop pest species than any other ladybird, the trouble is that it eats beneficial species too. The jury is still out on whether it will affect our native species of ladybirds and other insects. The larger Harlequin may displace them.