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			{{Short description\|Vespid wasps that gather fibers from dead wood and plant stems}}
	<div style="float:right;width:300px;padding-left:15px">
			{{Paraphyletic group
	]
			\| auto = yes
	<center><small>Polistes wasp nest<br>Batavia, New York<br></small></center> </div>
			\| image = Wasp colony.jpg
			\| image_caption = A young paper wasp queen ('']'') starting a new colony
			\| parent = Vespidae
			\| includes_text = Subfamilies with paper wasp species
			\| includes = *]
			*]
			*]
			}}
			]); exposed comb]]
			]
			] nest (]); concealed comb]]

			'''Paper wasps''' are a type of ] ]s. The term is typically used to refer to members of the vespid subfamily ], though it often colloquially includes members of the subfamilies ] (]s and ]s) and ], which also make nests out of paper.
	'''Paper Wasps''' are social ]s, making up the genus ''Polistes''. They form small colonies with umbrella-shaped nests in sheltered spots, and are quite mild-mannered. They feed on caterpillars and other soft-bodied insects, most of them pests.

			Paper wasp nests are characterized by open combs with down pointing cells. Some types of paper wasps are occasionally referred to as '''umbrella wasps''' due to the distinctive design of their nests.<ref name=enc> Microsoft Encarta Online Encyclopedia 2006.</ref>
	Despite the use of the proper name, all social wasps make nests from paper. The larger colonial species, ]s, ]s, can be very defensive and should not be approached unless one is experienced. All are beneficial and should be protected if possible. In Europe, hornets are a threatened species and are protected by law.

			== Species ==
	Paper wasps gather fibers from old wood, chew them and mix with saliva to make a water-resistant gray paper. Humans may have learned to make paper from watching wasps. In the photo one can see a much roughed deck post from the continual gathering of wood fibers by wasps making nests.
			Approximately 300 species of '']'' paper wasps have been identified worldwide. The most common paper wasp in Europe is '']''.<ref>{{cite web \|url=http://www.ipc.ibaraki.ac.jp/~jkrte/wasp/polistes/Polistes.htm \|title=Distributional checklist of the species of the genus ''Polistes'' (Hymenoptera: Vespidae; Polistinae, Polistini) \|author=James M. Carpenter \|access-date=2009-02-09 \|url-status=dead \|archive-url=https://web.archive.org/web/20090710131558/http://www.ipc.ibaraki.ac.jp/~jkrte/wasp/polistes/Polistes.htm \|archive-date=2009-07-10 }}</ref> The ] tribe ] contains another 300 species, and the ] tribes ] and ] each contain over 250 more, so the total number of true paper wasps worldwide is about 1100 species, almost half of which can be found in the neotropics.

			== Nests ==
	<div style="float:right;width:300px;padding-left:15px">
			]'' on part of a large nest, in California]]
	]
	<center><small>A paper wasp gathering wood fibers<br>from a deck

			The nests of most true paper wasps are characterized by having open combs with cells for brood rearing. The wasps gather ] from dead ] and ], which they mix with ], and use to construct nests that appear made out of gray or brown papery material. A ']', or constricted stalk attaches the nest to a branch or other structure.<ref name=OSU>Lyon, W.F. and G.S. Wegner (1991). {{webarchive\|url=https://web.archive.org/web/20010425015741/http://ohioline.osu.edu/hyg-fact/2000/2077.html \|date=2001-04-25 }} Ohio State University Extension Fact Sheet: Entomology</ref>
	post<br>Norwich, New York<br></small></center> </div>
			The wasps secrete an ] repellent chemical which they spread around the base of the petiole or anchor to prevent the loss of eggs or ].<ref>{{cite journal \|last1=Post \|first1=David C \|last2=Jeanne \|first2=Robert L \|title=Colony Defense against Ants by Polistes fuscatus (Hymenoptera: Vespidae) in Wisconsin \|journal=Journal of the Kansas Entomological Society \|date=July 1981 \|volume=54 \|issue=3 \|page=599 \|jstor=25084198 \|url=https://www.jstor.org/stable/25084198 \|access-date=18 December 2021}}</ref>
			]

			Most social ]s of the family Vespidae make nests from paper, but some ] species, such as '']'', use ]. A small group of ] ] wasps, of the genus '']'' (the only eusocial wasps outside the family Vespidae), also constructs nests out of chewed plant fibers, though the nest consistency is quite different from those of true paper wasps, due to the absence of wood fibers, and the use of silk extruded by female wasps to bind the fibers.<ref>{{cite journal \|first1=R. W. \|last1=Matthews \|first2=C. K. \|last2=Starr \|title=Microstigmus comes Wasps have a Method of Nest Construction Unique Among Social Insects \|journal=Biotropica \|volume=16 \|issue=1 \|year=1984 \|pages=55–58 \|doi=10.2307/2387895 \|jstor=2387895 \|bibcode=1984Biotr..16...55M }}</ref>
	The European Polistes wasp, ''Polistes dominulus'' (which is likely to be the species in the upper photo), was introduced into the ] about ] and has quickly spread throughout most of the country, in most cases replacing native species within a couple years. It nests earlier in the spring, in a wider variety of nest sites, is more aggressive, and feeds on a larger variety of insects. Native species feed almost entirely on caterpillars. Some entomologists are considering this to be an ], while others note that it may become an important control of ] a serious invasive pest.

			Nests can be found in sheltered areas, such as the eaves of a house, the branches of a tree, on the end of an open pipe, or on an old clothesline. Some species, such as '']'', will vary their nest architecture depending on where they build their nest.<ref name=":2">{{Cite journal\|title = Nest Architecture of the Australian Paper Wasp Ropalidia Romandi Cabeti, With a Note on its Developmental Process (Hymenoptera: Vespidae)\|last1 = Yamane\|first1 = Soichi\|date = 1994\|journal = Psyche: A Journal of Entomology\|doi =10.1155/1994/92839 \|last2 = Ito\|first2 = Yosiaki\|issue = 3–4\|pages = 145–158\|volume = 101\|doi-access = free}}</ref>
	''See also: ]''

			Three species of '']'' are obligate ], and have lost the ability to build their own nests, and are sometimes referred to as "]s". They rely on the nests of their hosts to raise their brood.<ref name="Dapporto">Dapporto L, Cervo R, Sledge MF, Turillazzi S (2004) "Rank integration in dominance hierarchies of host colonies by the paper wasp social parasite ''Polistes sulcifer'' (Hymenoptera, Vespidae)". ''J Insect Physiol'' '''50''' :217–223</ref> A few ]s and ]s are also brood parasites (e.g., '']'').<ref>{{Cite web\|url = http://www.bwars.com/index.php?q=wasp/vespidae/vespinae/vespula-austriaca\|title = Vespula austriaca (Panzer, 1799)\|date = 1998\|access-date = 15 Oct 2014\|website = Bees, Wasps & Ants Recording Society\|publisher = BWARS\|last = Archer\|first = M.E.}}</ref>
	{{msg:stub}}

			== Brood rearing ==
			In temperate climates, in the fall, reproductive males and females are reared. They fly away and mate. Only the new queens hibernate overwinter in a sheltered location.
			In the spring each searches for a suitable location and starts and maintains a new nest typically by herself until the first brood of female workers matures and helps in all activities except egg laying.
			]
			]
			]

			Once eggs hatch, the legless larvae remain in their cells to be taken care of. The wasps hunt prey, primarily ]s, but also other insects like ], and ] ]. The adult cuts up the prey and masticates it (thoroughly chewing it) prior to feeding it to the larvae.
			]

			Water is also provided for the larva. Wasps may find a puddle or stream or dew that has collected at the base of some leaves.
			]

			When the larvae mature, they pupate in their cell and the workers cap the cell, sealing them in until the adult breaks out of its pupal shell.
			The open nest is light colored reflecting light and the nest material provides some insulation, even so it can be subjected to elevated temperatures with sun exposure or high ambient temperatures. The wasps can cool their nest by fanning their wings and/or bringing water to place in the nest letting evaporation provide substantial cooling.
			]
			]

			== Behavior ==
			Unlike ]s and ]s, which can be very aggressive, ] paper wasps will generally only attack if they themselves or their nest are threatened.<ref>Felixson, Carol (undated). "Paper wasps work together." Retrieved 2009-04-26 from "L.A. Times" at .</ref> Their territoriality can lead to attacks on people, and their stings are quite painful and – like all venomous animals – can produce a potentially fatal ] reaction in some individuals.<ref name=Texas>Drees, B.M. and John Jackman (1999). ''Field Guide to Texas Insects.'' Gulf Publishing Company, Houston, Texas. Excerpt available at: {{webarchive\|url=https://web.archive.org/web/20061205022343/http://insects.tamu.edu/fieldguide/cimg348.html \|date=2006-12-05 }}</ref> A study conducted on European paper wasps ('']'') concluded that wasps with brighter ] are more venomous, because they have larger venom glands, and offer a stronger warning signal to organisms threatening the nest.<ref>{{Cite journal\|last1=Vidal-Cordero\|first1=J\|last2=Moreno-Rueda\|first2=Gregorio\|last3=López-Orta\|first3=Antonio\|last4=Marfil-Daza\|first4=Carlos\|last5=Ros-Santaella\|first5=José L\|last6=Ortiz-Sánchez\|first6=F\|date=2012\|title=Brighter-colored paper wasps (''Polistes dominula'') have larger poison glands \|journal=Frontiers in Zoology \| volume=9\|issue=1\|pages=20\|doi=10.1186/1742-9994-9-20\|issn=1742-9994\|pmc=3495029\|pmid=22901602\|doi-access=free}}</ref>
			]
			]
			]

			Most wasps are beneficial in their natural habitat and are critically important in natural biocontrol.<ref name= OSU/> Paper wasps feed on sugars like ], ] ] and the sugary liquid produced by their larvae. Because they are a known ] and feed on known garden ], paper wasps are often considered to be beneficial by gardeners.<ref name=Texas/>

			When threatened, the wasps have a variety of responses depending upon the severity. Paper wasps use ]s to coordinate their response. The first level is posturing. They face the perceived threat, stand tall and raise their wings.

			At a higher level of threat, the wasp will move around the nest surface. With sufficient disturbance, the wasp will fly around the nest attempting to locate the source, chasing and stinging the threat.{{cn\|date=September 2024}}

			== See also ==
			* ]
			* ]
			* '']''
			* ]
			* ]

			== References ==
			{{Reflist}}

			== External links ==
			* Retrieved 2012-12-04.

			]
			]
			]
			]

Latest revision as of 20:06, 10 October 2024

Vespid wasps that gather fibers from dead wood and plant stems

Paper wasp

A young paper wasp queen (Polistes gallicus) starting a new colony
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Superfamily:	Vespoidea
Family:	Vespidae
Subfamilies with paper wasp species
Polistinae Stenogastrinae Vespinae

Paper wasp (Polistes major) nest (Polistinae); exposed comb

Paper wasps are a type of vespid wasps. The term is typically used to refer to members of the vespid subfamily Polistinae, though it often colloquially includes members of the subfamilies Vespinae (hornets and yellowjackets) and Stenogastrinae, which also make nests out of paper.

Paper wasp nests are characterized by open combs with down pointing cells. Some types of paper wasps are occasionally referred to as umbrella wasps due to the distinctive design of their nests.

Species

Approximately 300 species of Polistes paper wasps have been identified worldwide. The most common paper wasp in Europe is Polistes dominula. The Old World tribe Ropalidiini contains another 300 species, and the Neotropical tribes Epiponini and Mischocyttarini each contain over 250 more, so the total number of true paper wasps worldwide is about 1100 species, almost half of which can be found in the neotropics.

Nests

The nests of most true paper wasps are characterized by having open combs with cells for brood rearing. The wasps gather fibers from dead wood and plant stems, which they mix with saliva, and use to construct nests that appear made out of gray or brown papery material. A 'petiole', or constricted stalk attaches the nest to a branch or other structure. The wasps secrete an ant repellent chemical which they spread around the base of the petiole or anchor to prevent the loss of eggs or brood.

Worker adding additional material to expand nest

Most social wasps of the family Vespidae make nests from paper, but some stenogastrine species, such as Liostenogaster flavolineata, use mud. A small group of eusocial crabronid wasps, of the genus Microstigmus (the only eusocial wasps outside the family Vespidae), also constructs nests out of chewed plant fibers, though the nest consistency is quite different from those of true paper wasps, due to the absence of wood fibers, and the use of silk extruded by female wasps to bind the fibers.

Nests can be found in sheltered areas, such as the eaves of a house, the branches of a tree, on the end of an open pipe, or on an old clothesline. Some species, such as Ropalidia romandi, will vary their nest architecture depending on where they build their nest.

Three species of Polistes are obligate social parasites, and have lost the ability to build their own nests, and are sometimes referred to as "cuckoo paper wasps". They rely on the nests of their hosts to raise their brood. A few hornets and yellowjackets are also brood parasites (e.g., Vespula austriaca).

Brood rearing

In temperate climates, in the fall, reproductive males and females are reared. They fly away and mate. Only the new queens hibernate overwinter in a sheltered location. In the spring each searches for a suitable location and starts and maintains a new nest typically by herself until the first brood of female workers matures and helps in all activities except egg laying.

End of season: Male wasps mature and leave, nest shuts down leaving nest empty.

Single paper wasp foundress establishes her nest, adding cells, renewing repellent on the pedicle. She has already laid eggs in several of the incomplete cells and continually checks the nest and cells.

Queen replacing an egg that was either not viable or laid by a worker

Once eggs hatch, the legless larvae remain in their cells to be taken care of. The wasps hunt prey, primarily caterpillars, but also other insects like flies, and beetle larvae. The adult cuts up the prey and masticates it (thoroughly chewing it) prior to feeding it to the larvae.

Masticated caterpillar portion brought to nest and fed to the larvae

Water is also provided for the larva. Wasps may find a puddle or stream or dew that has collected at the base of some leaves.

Water is brought to the nest for the larvae

When the larvae mature, they pupate in their cell and the workers cap the cell, sealing them in until the adult breaks out of its pupal shell. The open nest is light colored reflecting light and the nest material provides some insulation, even so it can be subjected to elevated temperatures with sun exposure or high ambient temperatures. The wasps can cool their nest by fanning their wings and/or bringing water to place in the nest letting evaporation provide substantial cooling.

Wasps fanning the nest with their wings to provide breeze/cooling

Wasps bring water to place in nest to provide cooling by evaporation

Behavior

Unlike yellowjackets and hornets, which can be very aggressive, polistine paper wasps will generally only attack if they themselves or their nest are threatened. Their territoriality can lead to attacks on people, and their stings are quite painful and – like all venomous animals – can produce a potentially fatal anaphylactic reaction in some individuals. A study conducted on European paper wasps (Polistes dominula) concluded that wasps with brighter aposematic colors are more venomous, because they have larger venom glands, and offer a stronger warning signal to organisms threatening the nest.

Paper wasps disturbed by hits to their nest support.

Most wasps are beneficial in their natural habitat and are critically important in natural biocontrol. Paper wasps feed on sugars like nectar, aphid honeydew and the sugary liquid produced by their larvae. Because they are a known pollinator and feed on known garden pests, paper wasps are often considered to be beneficial by gardeners.

When threatened, the wasps have a variety of responses depending upon the severity. Paper wasps use alarm pheromones to coordinate their response. The first level is posturing. They face the perceived threat, stand tall and raise their wings.

At a higher level of threat, the wasp will move around the nest surface. With sufficient disturbance, the wasp will fly around the nest attempting to locate the source, chasing and stinging the threat.

References

"Paper Wasp" Microsoft Encarta Online Encyclopedia 2006.
James M. Carpenter. "Distributional checklist of the species of the genus Polistes (Hymenoptera: Vespidae; Polistinae, Polistini)". Archived from the original on 2009-07-10. Retrieved 2009-02-09.
^ Lyon, W.F. and G.S. Wegner (1991). Paper Wasps and Hornets Archived 2001-04-25 at the Wayback Machine Ohio State University Extension Fact Sheet: Entomology
Post, David C; Jeanne, Robert L (July 1981). "Colony Defense against Ants by Polistes fuscatus (Hymenoptera: Vespidae) in Wisconsin". Journal of the Kansas Entomological Society. 54 (3): 599. JSTOR 25084198. Retrieved 18 December 2021.
Matthews, R. W.; Starr, C. K. (1984). "Microstigmus comes Wasps have a Method of Nest Construction Unique Among Social Insects". Biotropica. 16 (1): 55–58. Bibcode:1984Biotr..16...55M. doi:10.2307/2387895. JSTOR 2387895.
Yamane, Soichi; Ito, Yosiaki (1994). "Nest Architecture of the Australian Paper Wasp Ropalidia Romandi Cabeti, With a Note on its Developmental Process (Hymenoptera: Vespidae)". Psyche: A Journal of Entomology. 101 (3–4): 145–158. doi:10.1155/1994/92839.
Dapporto L, Cervo R, Sledge MF, Turillazzi S (2004) "Rank integration in dominance hierarchies of host colonies by the paper wasp social parasite Polistes sulcifer (Hymenoptera, Vespidae)". J Insect Physiol 50 :217–223
Archer, M.E. (1998). "Vespula austriaca (Panzer, 1799)". Bees, Wasps & Ants Recording Society. BWARS. Retrieved 15 Oct 2014.
Felixson, Carol (undated). "Paper wasps work together." Retrieved 2009-04-26 from "L.A. Times" at .
^ Drees, B.M. and John Jackman (1999). Field Guide to Texas Insects. Gulf Publishing Company, Houston, Texas. Excerpt available at: Texas Cooperative extension Archived 2006-12-05 at the Wayback Machine
Vidal-Cordero, J; Moreno-Rueda, Gregorio; López-Orta, Antonio; Marfil-Daza, Carlos; Ros-Santaella, José L; Ortiz-Sánchez, F (2012). "Brighter-colored paper wasps (Polistes dominula) have larger poison glands". Frontiers in Zoology. 9 (1): 20. doi:10.1186/1742-9994-9-20. ISSN 1742-9994. PMC 3495029. PMID 22901602.

External links

National Geographic News: Wasps Can Recognize Faces. Retrieved 2012-12-04.

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