Vibidia duodecimguttata is a species of ladybird beetle belonging to the family Coccinellidae, subfamily Coccinellinae. It is present in most of Europe, in the East Palearctic ecozone and in the Near East. Its head and pronotum are yellow-brown, with 12 whitish spots, six on each elytron (hence the Latin word duodecimguttata, meaning twelve-spotted as if by drops). The adults grow up to 4 mm (0.16 in) long and can be encountered from April through September. This beetle is mycophagous, mainly feeding on the powdery mildew fungus (Oidium), diseases affecting some trees (including oak and hazel).