The Six-spot Burnet (Zygaena filipendulae) looks very similar to the Southern Six-spot Burnet (Zygaena transalpina).
Both occur through out West, Central and South Europe but the Southern Six-spot Burnet usually prefers higher altitudes.
The easiest way to distinguish the two is that the Six-spot Burnet has a black tip on its antennae, while the Southern Six-spot Burnet has yellow/whitish antennae tips.

Nature Reserve Schlangenberg, Breinigerberg, North-Rhine Westphalia, Germany, 7 August 2022