Poisonous oil beetle in the garden? Under no circumstances should you touch it. The blue-black insect is actually one of the most poisonous animals in Germany.
So far, however, there have been no incidents in Germany in which a person or animal was poisoned by the insect. Even if, according to BR24.de, the poison cantharidin is effective against warm-blooded animals, it is extremely unlikely that a single beetle would be enough to cause fatal consequences.