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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Supercohort: Polyneoptera
Cohort: Anartioptera
Magnordo: Polyplecoptera
Superordo: Plecopterida
Ordo: Plecoptera
Subordines: AntarctoperlariaArctoperlaria

Familiae incertae sedis: †Gulouidae — †Perlapsocidae — †Perlopseidae
Genera incertae sedis: †Fluminiperla – †Idiastogyia – †Kaptsheranga – †Marciperla – †Mesonotoperla – †Thaumatophora
Name

Plecoptera Burmeister, 1839

Synonyms

Neuroptera
Perlaria
Perlariae
Perlarides
Perlida
Perlidae
Perlides
Perlina
Perlites

References

Bojková, J.; Soldán, T. 2013: Stoneflies (Plecoptera) of the Czech Republic: species checklist, distribution and protection status. Acta Entomologica Musei Nationalis Pragae 53(2): 443–484. PDF Reference page.
Darilmaz, M.C., Salur, A., Murányi, D. & Vinçon, G.. 2016. Contribution to the knowledge of Turkish stoneflies with annotated catalogue (Insecta: Plecoptera). Zootaxa 4074(1): 1–74. DOI: 10.11646/zootaxa.4074.1.1.Reference page.
DeWalt, R.E. et al. 2012: Ohio USA stoneflies (Insecta, Plecoptera): species richness estimation, distribution of functional niche traits, drainage affiliations, and relationships to other states. ZooKeys, 178: 1–26. DOI: 10.3897/zookeys.178.2616
DeWalt, R.E. & South, E.J. 2015. Ephemeroptera, Plecoptera, and Trichoptera on Isle Royale National Park, USA, compared to mainland species pool and size distribution. ZooKeys, 532: 137–158. DOI: 10.3897/zookeys.532.6478 Full article Reference page.
Duarte, T.; Lecci, L.S.; Calor, A.R. 2014: Stoneflies (Insecta: Plecoptera) from Serra Bonita, Bahia, Brazil: New species and updated records. Zootaxa 3779(1): 81–92. DOI: 10.11646/zootaxa.3779.1.9 Reference page.
Errochdi, S. et al. 2014: Contribution to the knowledge of Moroccan and Maghrebin stoneflies (Plecoptera). Zootaxa 3838(1): 46–76. DOI: 10.11646/zootaxa.3838.1.2 Reference page.
Judson, S.W.; Nelson, C.R. 2012: A guide to Mongolian stoneflies (Insecta: Plecoptera). Zootaxa 3541: 1–118. Preview PDF Reference page.
Karaouzas, I., Andriopoulou, A., Kouvarda, T. & Murányi, D. 2016. An annotated checklist of the Greek Stonefly Fauna (Insecta: Plecoptera). Zootaxa 4111(4): 301–333. DOI: 10.11646/zootaxa.4111.4.1. Reference page.
McLellan, I.D. 2006: Endemism and biogeography of New Zealand Plecoptera (Insecta). Illiesia, 2 (2): 15–23. PDF
Teslenko, V.A. 2016. Larvae of two East-Asian species of Nemoura (Plecoptera: Nemouridae). Zootaxa 4162(2): 381–390. DOI: 10.11646/zootaxa.4162.2.12. Reference page.
Theischinger, G.; Miller, J.; Tang, C.; Krogh, M.; Pope, E. 2011: The benefits of using both adult and larval stoneflies (Plecoptera) in environmental surveys: an example from New South Wales with a summary of the Australian stonefly fauna. Australian entomologist, 38 (1): 1–20. PDF of whole issue

Additional references

Chen, Z-T. & Du, Y-Z. 2018. A checklist and adult key to the Chinese stonefly (Plecoptera) genera. Zootaxa 4375(1): 59–74. DOI: 10.11646/zootaxa.4375.1.2 Reference page.
DeWalt, R.E., Grubbs, S.C., Armitage, B.J., Baumann, R.W., Clark, S.M. & Bolton, M.J. 2016. Atlas of Ohio Aquatic Insects: Volume II, Plecoptera. Biodiversity Data Journal 4: e10723. DOI: 10.3897/BDJ.4.e10723 Open access. Reference page.
Kondratieff, B.C., DeWalt, R.E. & Verdone, C.J. 2019. Plecoptera of Canada. Pp 243–254 In Langor, D.W. & Sheffield, C.S. (eds.). The Biota of Canada – A Biodiversity Assessment. Part 1: The Terrestrial Arthropods. ZooKeys 819: 520 pp. Reference page. . DOI: 10.3897/zookeys.819.23535 Reference page.
Ribeiro, J.M.F. & Gorayeb, I. de S. 2016. Key to Plecoptera nymphs from the Brazilian Amazon (Insecta). Zootaxa 4208(5): 433–445. DOI: 10.11646/zootaxa.4208.5.2. Reference page.
Ribeiro, J.M.F. & dos Santos, C.R.M. 2018. Checklist of the Plecoptera of Brazilian Amazon (Insecta: Plecoptera: Perlidae). Zootaxa 4514(4): 563–572. DOI: 10.11646/zootaxa.4514.4.9 Paywall Reference page.
Stevens, D.M., Bishop, J. & Picker, M.D. 2018. Phylogenetic analysis reveals high local endemism and clear biogeographic breaks in southern African stoneflies (Notonemouridae, Plecoptera). Zootaxa 4483(3): 428–454. DOI: 10.11646/zootaxa.4483.3.2 Paywall Reference page.

Links

order Plecoptera. Plecoptera Species File. Archived from the original on 2012-04-08.

Vernacular names
Alemannisch: Staimugge
беларуская: Вяснянкі
български: Перли
dansk: Slørvinger
Deutsch: Steinfliegen
English: Stoneflies
eesti: Kevikulised
suomi: Koskikorennot
hrvatski: Obalne muhe
magyar: Álkérészek
日本語: カワゲラ目 (襀翅目)
한국어: 강도래목 (적시목)
lietuvių: Ankstyvės
latviešu: Strauteņi
македонски: Пролетници
norsk: Steinfluer
русский: Веснянки
slovenščina: Vrbnice
Türkçe: Taş sinekleri
中文: 石蝇目


Plecoptera is an order of insects, commonly known as stoneflies. Some 3,500 species are described worldwide,[1] with new species still being discovered. Stoneflies are found worldwide, except Antarctica.[2] Stoneflies are believed to be one of the most primitive groups of Neoptera, with close relatives identified from the Carboniferous and Lower Permian geological periods, while true stoneflies are known from fossils only a bit younger. Their modern diversity, however, apparently is of Mesozoic origin.[3]

Plecoptera are found in both the Southern and Northern Hemispheres, and the populations are quite distinct, although the evolutionary evidence suggests species may have crossed the equator on a number of occasions before once again becoming geographically isolated.[3][4]

All species of Plecoptera are intolerant of water pollution, and their presence in a stream or still water is usually an indicator of good or excellent water quality.[5]

Description and ecology
Nymph of a golden stonefly, Plecoptera, Perlidae
Dinotoperla imago (adult)
(Gripopterygidae: Dinotoperlinae)

Stoneflies have a generalized anatomy, with few specialized features compared to other insects. They have simple mouthparts with chewing mandibles, long, multiple-segmented antennae, large compound eyes, and two or three ocelli. The legs are robust, with each ending in two claws. The abdomen is relatively soft, and may include remnants of the nymphal gills even in the adult. Both nymphs and adults have long, paired cerci projecting from the tip of their abdomens.[6]

The name "Plecoptera" literally means "braided-wings", from the Ancient Greek plekein (πλέκειν, "to braid") and pteryx (πτέρυξ, "wing").[7] This refers to the complex venation of their two pairs of wings, which are membranous and fold flat over their backs. Stoneflies are generally not strong fliers, and some species are entirely wingless.

A few wingless species, such as the Lake Tahoe benthic stonefly ("Capnia" lacustra[Note 1]) or Baikaloperla, are the only known insects, perhaps with the exception of Halobates, that are exclusively aquatic from birth to death.[9] Some true water bugs (Nepomorpha) may also be fully aquatic for their entire lives, but can leave the water to travel.

The nymphs (technically, "naiads") are aquatic and live in the benthic zone of well-oxygenated lakes and streams. A few species found in New Zealand and nearby islands have terrestrial nymphs, but even these inhabit only very moist environments. The nymphs physically resemble wingless adults, but often have external gills, which may be present on almost any part of the body. Nymphs can acquire oxygen via diffusing through the exoskeleton, or through gills located on behind the head, on the thorax, or around the anus.[10] Due to their nymph's requirement for well oxygenated water, the species is very sensitive to water pollution. This makes them important indicators for water quality.[11] Most species are herbivorous as nymphs, feeding on submerged leaves and benthic algae, but many are hunters of other aquatic arthropods.[6]
Life cycle

The female can lay up to one thousand eggs. It will fly over the water and drop the eggs in the water. It also may hang on a rock or branch. Eggs are covered in a sticky coating which allows them to adhere to rocks without being swept away by swift currents.[12] The eggs typically take two to three weeks to hatch, but some species undergo diapause, with the eggs remaining dormant throughout a dry season, and hatching only when conditions are suitable.[6]

The insects remain in the nymphal form for one to four years, depending on species, and undergo from 12 to 36 molts before emerging and becoming terrestrial as adults.[13] Before becoming adults, nymphs will leave the water, attach to a fixed surface and molt one last time.

The adults generally only survive for a few weeks, and emerge only during specific times of the year when resources are optimal. Some do not feed at all, but those that do are herbivorous.[6] Adults are not strong fliers and generally stay near the stream or lake they hatched from.[12]
Systematics

Traditionally, the stoneflies were divided into two suborders, the "Antarctoperlaria" (or "Archiperlaria") and the Arctoperlaria. However, the former simply consists of the two most basal superfamilies of stoneflies, which do not seem to be each other's closest relatives. Thus, the "Antarctoperlaria" are not considered a natural group (despite some claims to the contrary).[14]

The Arctoperlaria, though, have been divided into two infraorders, the Euholognatha (or Filipalpia) and the Systellognatha (also called Setipalpia or Subulipalpia). This corresponds to the phylogeny[15] with one exception: the Scopuridae must be considered a basal family in the Arctoperlaria, not assignable to any of the infraorders. Alternatively, the Scopuridae were placed in an unranked clade "Holognatha" together with the Euholognatha (meaning roughly "advanced Holognatha"), but the Scopuridae do not appear significantly closer to the Euholognatha than to the Systellognatha.

In addition, not adopting the clades Antarctoperlaria and Holognatha allows for a systematic layout of the Plecoptera that adequately reproduces phylogeny, while retaining the traditional ranked taxa.[3][16]
Adult of family Taeniopterygidae (Euholognatha)
Adult of family Perlidae (Systellognatha)

Basal lineages ("Antarctoperlaria")

Superfamily Eusthenioidea
Family Diamphipnoidae
Family Eustheniidae
Superfamily Leptoperloidea
Family Austroperlidae
Family Gripopterygidae

Suborder Arctoperlaria

Basal family Scopuridae
Infraorder Euholognatha
Family Capniidae (about 300 species) – small winter stoneflies
Family Leuctridae (390+ species) – rolled-winged stoneflies
Family Nemouridae (over 700 species) – spring stoneflies
Family Notonemouridae
Family Taeniopterygidae (about 110 species) – winter stoneflies
Infraorder Systellognatha
Family Chloroperlidae (over 180 species) – green stoneflies
Family Perlidae (about 400 species) – common stoneflies
Family Perlodidae (350+ species)
Family Peltoperlidae (about 68 species) – roachlike stoneflies
Family Styloperlidae (about 10 species)
Family Pteronarcyidae (about 12 species) – salmonflies, giant stoneflies

Notes

The genus Capnia is not monophyletic and this species is suspected to belong elsewhere.[8]

References

Romolo Fochetti & José Manuel Tierno de Figueroa (2008). "Global diversity of stoneflies (Plecoptera; Insecta) in freshwater". In E. V. Balian; C. Lévêque; H. Segers & K. Martens (eds.). Freshwater Animal Diversity Assessment. Hydrobiologia. Vol. 595. pp. 265–377. doi:10.1007/978-1-4020-8259-7_39. ISBN 978-1-4020-8258-0.
Brittain, 1987
Peter Zwick (2000). "Phylogenetic system and zoogeography of the Plecoptera". Annual Review of Entomology. 45: 709–746. doi:10.1146/annurev.ento.45.1.709. PMID 10761594.
H. B. N. Hynes (1993). Adults and Nymphs of British Stoneflies. Freshwater Biological Association. ISBN 978-0-900386-28-2.
Nelson, Riley. "Clean water has bugs in it, says BYU Biology Professor Riley Nelson". Archived from the original on 6 September 2015. Retrieved 16 May 2013.
Hoell, H.V.; Doyen, J.T. & Purcell, A.H. (1998). Introduction to Insect Biology and Diversity (2nd ed.). Oxford University Press. pp. 383–386. ISBN 978-0-19-510033-4.
S. C. Woodhouse (1910). English-Greek Dictionary - a Vocabulary of the Attic Language. London: George Routledge & Sons.
C. Riley Nelson (January 1, 1996). "Capniidae. Winter Stoneflies". Tree of Life Web Project. Retrieved July 31, 2008.
E. M. Holst (2000). "Lake Tahoe benthic stonefly (Capnia lacustra)" (PDF). In D. D. Murhy; C. M. Knopp (eds.). Lake Tahoe Watershed Assessment (PDF). United States Department of Agriculture. pp. O–118 – O–120.
"ENT 425 | General Entomology | Resource Library | Compendium [plecoptera]". www.cals.ncsu.edu. Retrieved 2016-02-23.
"Plecoptera - Stoneflies -- Discover Life". www.discoverlife.org. Retrieved 2016-02-23.
"ENT 425 | General Entomology | Resource Library | Compendium [plecoptera]". www.cals.ncsu.edu. Retrieved 2016-04-12.
"Order Plecoptera - Stoneflies - BugGuide.Net". bugguide.net. Retrieved 2016-04-12.
C. Riley Nelson (January 1, 1996). "Plecoptera. Stoneflies". Tree of Life Web Project. Retrieved July 31, 2008.
Ding, Shuangmei; Li, Weihai; Wang, Ying; Cameron, Stephen L.; Murányi, Dávid; Yang, Ding (June 2019). "The phylogeny and evolutionary timescale of stoneflies (Insecta: Plecoptera) inferred from mitochondrial genomes". Molecular Phylogenetics and Evolution. 135: 123–135. doi:10.1016/j.ympev.2019.03.005. ISSN 1055-7903. PMID 30876966. S2CID 80621609.
Nelson (1996b)

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