The bee stings differ from insect bites (horse-fly and ants), and the venom or toxin of stinging insects is quite different. Therefore, the body's reaction to a bee sting may differ significantly from one species to another. The most aggressive stinging insects are wasps (Family: Vespidae; Order: Hymenoptera) including bald-faced hornets and other yellow jackets but not hornets in general (e.g., the European hornet is gentle)