What purpose does the dramatic, scorpion-like display serve?

Answer

It is purely a bluff intended to look aggressive to predators.

When disturbed, the beetle raises its abdomen over its body, creating a chilling, scorpion-like display that acts as a visual bluff intended to scare off potential threats like birds or mammals.

What purpose does the dramatic, scorpion-like display serve?
animalinsectbeetlesting