Definition of the word yellow jacket

The common name "yellow jacket" refers to a specific type of wasp, specifically the species belonging to the genus Vespula. The origin of this name can be traced back to the mid-19th century when the wasps were first introduced to North America. The indigenous species of wasps at that time were typically large and intimidating, with black and yellow coloration similar to the familiar bumblebee. The newly imported yellow-jacketed wasps, on the other hand, were smaller and more aggressive than their North American counterparts. These differences, combined with the distinctive yellow and black coloration of the wasps, led to their distinctive nickname. The name "yellow jacket" likely comes from the yellow and black markings found on their exoskeleton, which are reminiscent of the brightly colored uniforms worn by football referees at the time. The scientific name Vespula, chosen by the Swedish naturalist Carl Linnaeus, derives from the Latin "vespa" meaning "wasp." The specific names of some of the most commonly encountered species, such as V. Vulgaris (common yellow jacket) and V. Maculifrons (banded yellow jacket), help to further clarify their unique biological characteristics. In summary, the term "yellow jacket" was coined in the mid-19th century to distinguish the smaller and more aggressive wasps imported to North America from the larger, less intimidating species already native to the region. The vivid yellow and black markings on their exoskeletons gave them a distinctive appearance, reminiscent of the uniforms worn by football officials of the time, leading to their iconic name.