According to reports, the poisonous oil beetles are spreading mainly in southwestern Germany. Experts estimate that only every thousandth larva turns into an oil beetle.
In Germany, they are on the Red List of Endangered Species. If you behave correctly, nothing will happen if you don't know how to recognize the oil beetle, says one expert. The poison of the black-blue shiny beetle can be fatal, according to the experts. It can be lethal to an adult, says the nature conservation officer at the state association of the BUND.