@Portal Star,
All ladybirds can bite, but a type called the harlequin ladybird found throughout much of the UK is more aggressive and tends to bite more often.
The harlequin ladybird can be red or orange with multiple spots. Look out for a white spot on its head – other ladybirds don't have these patches.
Ladybird bites can be painful, but aren't usually anything to worry about.