A ladybird is a small round beetle that is red with black spots.
[British]regional note: in AM, use ladybug
ladybird in British English
(ˈleɪdɪˌbɜːd)
noun
any of various small brightly coloured beetles of the family Coccinellidae, such as Adalia bipunctata (two-spotted ladybird), which has red elytra marked with black spots