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Chaetotaxy

Chaetotaxy is the arrangement of bristles (macrochaetae) on an arthropod or annelid, or taxonomy based on their position and size. For example, it is important in Diptera, in which group it was formalised by Ernst August Girschner. The term chaetotaxy was later proposed by Carl Robert Osten-Sacken.

The chaetotaxy of the thorax of a muscoid fly
Morphology and chaetotaxy of the head of a fly (Muscomorpha)

The chaetotaxy of a fly might include :- acrostichal, dorsocentral, humeral, mesopleural, sternopleural, notopleural, postalar, supraalar and scutellar bristles on the thorax; dorsal, posterodorsal, anterodorsal, ventral, posteroventral and anteroventral bristles on the legs and ocellar, orbital, postvertical, vibrissal, outer vertical and inner vertical bristles on the head.

Chaetotaxy is also used in determining homology in certain morphological traits, as well as providing information about the phylogeny between taxa. For example, chaetotaxy has been used to clarify evolutionary relationships in Collembola,[1] as well as identify new species.[2]

References

  • Capinera, J.L. (editor). 2008. Encyclopedia of Entomology, 2nd Edition. Vols. 1-4. Springer, Dordrecht, The Netherlands. ISBN 1-4020-6242-7.
  • McAlpine, J.F. 1981 Morphology and terminology - Adults. - In: McAlpine, J.P. et al. (eds.): Manual of Nearctic Diptera, vol. 1; p. 9-63 - Ottawa: Research Branch, Agriculture Canada, Monograph 27.
  • Steyskal, G.C. (1976) The terminology of bristles on the upper back of the head in the higher Diptera. Journal of the Kansas Entomological Society 49 (2): 155-159.
  1. ^ Soto-Adames, Felipe; Bellini, Bruno (March 2015). "Dorsal Chaetotaxy of Neotropical Species Supports a Basal Position for the Genus Lepidonella Among Scaled Paronellidae (Collembola, Entomobryoidea)". Florida Entomologist. 98: 330–341. doi:10.1653/024.098.0152.
  2. ^ Medeiros, Gleyce da S.; Greenslade, Penelope; Bellini, Bruno (July 2020). "The Rare Richardsitas Betsch (Collembola, Symphypleona, Sminthuridae): A New Species from Australia with Comments on the Genus and on the Sminthurinae". Insects. 11 (8): 519. doi:10.3390/insects11080519. PMC 7469147. PMID 32796507.

External links

  • CSIRO Anatomy atlas
  • Chaetotaxy of Asilidae
  • TOL Description of the family Clusiidae including chaetotaxy.

See also

Morphology of Diptera

chaetotaxy, arrangement, bristles, macrochaetae, arthropod, annelid, taxonomy, based, their, position, size, example, important, diptera, which, group, formalised, ernst, august, girschner, term, chaetotaxy, later, proposed, carl, robert, osten, sacken, chaeto. Chaetotaxy is the arrangement of bristles macrochaetae on an arthropod or annelid or taxonomy based on their position and size For example it is important in Diptera in which group it was formalised by Ernst August Girschner The term chaetotaxy was later proposed by Carl Robert Osten Sacken The chaetotaxy of the thorax of a muscoid fly Morphology and chaetotaxy of the head of a fly Muscomorpha The chaetotaxy of a fly might include acrostichal dorsocentral humeral mesopleural sternopleural notopleural postalar supraalar and scutellar bristles on the thorax dorsal posterodorsal anterodorsal ventral posteroventral and anteroventral bristles on the legs and ocellar orbital postvertical vibrissal outer vertical and inner vertical bristles on the head Chaetotaxy is also used in determining homology in certain morphological traits as well as providing information about the phylogeny between taxa For example chaetotaxy has been used to clarify evolutionary relationships in Collembola 1 as well as identify new species 2 References EditCapinera J L editor 2008 Encyclopedia of Entomology 2nd Edition Vols 1 4 Springer Dordrecht The Netherlands ISBN 1 4020 6242 7 McAlpine J F 1981 Morphology and terminology Adults In McAlpine J P et al eds Manual of Nearctic Diptera vol 1 p 9 63 Ottawa Research Branch Agriculture Canada Monograph 27 Steyskal G C 1976 The terminology of bristles on the upper back of the head in the higher Diptera Journal of the Kansas Entomological Society 49 2 155 159 Soto Adames Felipe Bellini Bruno March 2015 Dorsal Chaetotaxy of Neotropical Species Supports a Basal Position for the Genus Lepidonella Among Scaled Paronellidae Collembola Entomobryoidea Florida Entomologist 98 330 341 doi 10 1653 024 098 0152 Medeiros Gleyce da S Greenslade Penelope Bellini Bruno July 2020 The Rare Richardsitas Betsch Collembola Symphypleona Sminthuridae A New Species from Australia with Comments on the Genus and on the Sminthurinae Insects 11 8 519 doi 10 3390 insects11080519 PMC 7469147 PMID 32796507 External links EditCSIRO Anatomy atlas Chaetotaxy ofAsilidae TOL Description of the family Clusiidae including chaetotaxy See also EditMorphology of Diptera Retrieved from https en wikipedia org w index php title Chaetotaxy amp oldid 1064249378, wikipedia, wiki, book, books, library,

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