Although many different types of insects in the United States are able to
inflict a poisonous bite or sting (meaning they are venomous), the insects most
likely to cause medical problems are bees (including the domestic honey bee,
its Africanized "killer bee" race, and the bumble bee), wasps (including paper
wasps, hornets, and yellow jackets), and ants (including the fire ant). These
insects are all in the Hymenoptera family, and thus stings from them are
occasionally called Hymenoptera stings.
Because many of these species live in colonies, if one stings you, you may
be stung by many. Although most stings cause only minor medical problems, some
stings may cause serious medical problems and even death. Read
more about bee, wasp, hornet, and yellow jacket stings.