Male wasps use spiky genitals to defend themselves from predators
Male mason wasps have no sting, but they have spines on their genitals that can cause a pricking pain, and these are effective at deterring ..
https://www.newscientist.com/article/2350186-male-wasps-use-spiky-genitals-to-defend-themselves-from-predators/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home