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Face of a southern yellowjacket (Vespula squamosa)Yellowjackets may be confused with other wasps, such as hornets and paper wasps such as Polistes dominula.A typical yellowjacket worker is about 12 mm (0.47 in) long, with alternating bands on the abdomen; the queen is larger, about 19 mm (0.75 in) long (the different patterns on their abdomens help separate various species).
The close interactions between southern yellowjackets and humans commonly lead to multiple, painful stings. [19] Their stings are venomous, which causes the pain, and workers can sting several times. These stinging attacks are typically effects of alarm and occur in defense of their colony, so disturbing a nest can result in multiple stings. [20]
The eastern yellow jacket or eastern yellowjacket (Vespula maculifrons) is a wasp found in eastern North America. [1] Although most of their nests are subterranean, they are often considered a pest due to their nesting in recreational areas and buildings. [ 2 ]
Though they tend not to sting unless a violent struggle occurs, they nonetheless violently protect their nests and can sting repeatedly. [11] As a result, increased efforts into pest control have occurred. Because the chance of colony disturbance and resulting stings is great, the species is recommended to be controlled during outbreaks. [2]
The placement of nests varies from group to group; yellow jackets such as Dolichovespula media and D. sylvestris prefer to nest in trees and shrubs; Protopolybia exigua attaches its nests on the underside of leaves and branches; Polistes erythrocephalus chooses sites close to a water source. [22]
The amount of time that the foragers continue to search these sites depends on the number of times they had visited it in the past. The choices made by V. germanica take into account both current and past experiences. These abilities imply that these wasps have important learning and memory capacities which enable them to memorize various ...
The common aerial yellowjacket lives across Canada and the United States. [1] [7] It occurs from northcentral Alaska to as far south as New Mexico and Arizona.D. arenaria is in fact one of the most common aerial yellowjackets found in eastern North America, [6] and nests can be found in arboreal to subterranean habitats.
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