A fairly scarce Ladybird beetle - I've only found the species myself two or three times. This is the "spring colour" form: After overwintering the beetle is black with yellow and white. The new generation that emerges in fall is brownish instead of black and only gains more colour very slowly, mostly during overwintering.
Larva of the same species here:
Sospita vigintiguttata (Linnaeus 1758) is a Ladybird Beetle with a Palearctic distribution. It is known from a large number of countries ranging from the Iberian peninsula to eastern Russia (probably), but it is rare or scarce over it's entire range.