Males do not have the egg-laying ovipositor that is modified into a stinger on female insects. Unlike bees, these female wasps have the ability to sting a target multiple times because their stinger does not fall off after use. If yellow jackets seem more aggressive than bees or hornets, it's for a good reason.
Yellowjackets are more aggressive than other stinging insects such as wasps, hornets, mud daubers or bees. Yellowjackets can both sting and bite — they will often bite to get a better grip to jab their stinger in. Since they don't lose their stinger, they can sting numerous times, and will do so unprovoked.
Description: The Yellow Jacket is a North American predatory insect that builds. Workers do all the different tasks needed to operate and maintain the nest.. When a bee or wasp stings, it injects a venomous fluid under the skin of the victim .
Yellowjacket or Yellow jacket is the common name in North America for predatory social wasps of the genera Vespula and Dolichovespula. Members of these genera are known simply as "wasps" in other English-speaking countries.. Many other insects exhibit protective mimicry of aggressive, stinging yellowjackets; .