Dr Brown said the Harlequin's annual swarming in autumn before hibernation had led to the nickname of the Halloween ladybug in the US. Dr Brown said Harlequin ladybirds sometimes bite people if no ...

The beetles haunting your home are likely the seven-spotted ladybug's cousin: the Asian lady beetle, also known as the harlequin ladybird or "Halloween beetle" because of its annual autumn appearance.