Red-necked longicorn beetle is not toxic, but after a sudden attack, red-necked longicorn beetle may spit out a special liquid, which is very irritating. Contact with human skin will produce very obvious pain, just like essential balm.

It is known that there are more than 22,000 species of longicorn beetles in the world, among which there are more than 2,200 species in China. The common ones are Monochamus alternatus, Anoplophora glabripennis, Anoplophora glabripennis and Anoplophora maculata.