Unlike other social wasps (like yellowjackets and hornets), paper wasps are not so aggressive. They only attack if they themselves or their nests are threatened. However their stings are painful and can produce a potentially fatal anaphylactic reaction in some individuals.
A stinger is actually a modified egg-laying tube which is connected to a venom sac inside the body. A paper wasp is quite capable of stinging repeatedly because it can easily withdraw its stinger from the entry point. When a wasp wants to sting, it curves its abdomen downward and punctures the victim's skin with its sharp stinger. Muscles then drive the stinger deeper into the flesh. Meanwhile, venom is being pumped from the venom sac, through the stinger, and into the wound. It is similar to how a hypodermic needle works. Chemicals in the venom cause the pain and irritation from the sting.
Only the female wasps have stinger. So only the female wasps are capable of stinging.
A stinger is actually a modified egg-laying tube which is connected to a venom sac inside the body. A paper wasp is quite capable of stinging repeatedly because it can easily withdraw its stinger from the entry point. When a wasp wants to sting, it curves its abdomen downward and punctures the victim's skin with its sharp stinger. Muscles then drive the stinger deeper into the flesh. Meanwhile, venom is being pumped from the venom sac, through the stinger, and into the wound. It is similar to how a hypodermic needle works. Chemicals in the venom cause the pain and irritation from the sting.Only the female wasps have stinger. So only the female wasps are capable of stinging.
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