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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. 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, as well as identify new species.

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  • Chaetotaxie (de)
  • Chaetotaxy (en)
  • Chétotaxie (fr)
  • Chetotassi dei Ditteri (it)
  • Chetotaksja (pl)
  • Хетотаксия (ru)
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  • Die Chaetotaxie oder Chaetotaxis ist die spezifische Anordnung von Borsten und Haaren bei den Gliederfüßern und Ringelwürmern. Das Fehlen oder Vorhandensein bestimmter Chaetae (Borsten) oder Setae (Borstenhaare) wird für die systematische Einteilung einer Gruppe oder die Bestimmung von Arten herangezogen. Besonders bei Milben, Springschwänzen, aber auch bei den Raupen der Schmetterlinge oder bei der Beborstung der Antennen und Beinpaare vieler Krebstiere dient die Chaetotaxie zur Darstellung stammesgeschichtlicher Verwandtschaftsverhältnisse anhand morphologischer Merkmale. (de)
  • Chetotaksja – liczba i rozmieszczenie szczecinek na zewnętrznej powierzchni ciała bezkręgowca oraz ich nazewnictwo i klasyfikacja. Cecha ta jest stała i użyteczna w taksonomii i oznaczaniu wielu grup. Chetotaksja odgrywa ważną rolę diagnostyczną w takich grupach stawonogów jak roztocze, zaleszczotki, widłonogi, skąponogi, drobnonogi, pareczniki, pierwogonki, skoczogonki, muchówki czy larwy chrząszczy i sieciarek. (pl)
  • Хетотаксия (от др.-греч. χαίτη «(длинные) волосы, кудри, грива» и τάξις «строй, порядок») — расположение (и тип) щетинок, подвижно находящихся в особых ямках и имеющих особые нервные окончания, на теле и отдельных органах, преимущественно членистоногих. Отличается большим постоянством и играет большую роль при определении биологических видов. Часто отражает метамерию тела. (ru)
  • 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. 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, as well as identify new species. (en)
  • La chétotaxie est l'étude de l'arrangement des soies (macrochète) d'un insecte ou d'un acarien qui entre en compte dans la classification scientifique des espèces basée sur la position et la taille des poils. Par exemple, elle est importante pour la description des diptères grâce à une formalisation entreprise par Ernst August Girschner. Le terme de chétotaxie a été proposé plus tard par Carl Robert Osten-Sacken. (fr)
  • La chetotassi dei Ditteri è un carattere morfologico utilizzato per la descrizione e la determinazione tassonomica all'interno di questo ordine. Fa fondamentalmente riferimento ad una codificazione della distribuzione degli annessi tricoidei più vistosi (setole o macrotrichi o macrochete) nelle più importanti regioni del corpo. (it)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Thorax-diptera-dorsal.jpg
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  • Die Chaetotaxie oder Chaetotaxis ist die spezifische Anordnung von Borsten und Haaren bei den Gliederfüßern und Ringelwürmern. Das Fehlen oder Vorhandensein bestimmter Chaetae (Borsten) oder Setae (Borstenhaare) wird für die systematische Einteilung einer Gruppe oder die Bestimmung von Arten herangezogen. Besonders bei Milben, Springschwänzen, aber auch bei den Raupen der Schmetterlinge oder bei der Beborstung der Antennen und Beinpaare vieler Krebstiere dient die Chaetotaxie zur Darstellung stammesgeschichtlicher Verwandtschaftsverhältnisse anhand morphologischer Merkmale. (de)
  • 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 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, as well as identify new species. (en)
  • La chétotaxie est l'étude de l'arrangement des soies (macrochète) d'un insecte ou d'un acarien qui entre en compte dans la classification scientifique des espèces basée sur la position et la taille des poils. Par exemple, elle est importante pour la description des diptères grâce à une formalisation entreprise par Ernst August Girschner. Le terme de chétotaxie a été proposé plus tard par Carl Robert Osten-Sacken. La chétotaxie d'une mouche inclut les soies thoraciques suivantes : acrosticales, dorsocentrales, humérales (ou post-pronotales), intra-alaires, notopleurales, post-alaires, post-humérales, préalaires, présuturales, scutellaires. Les soies (chètes) des pattes sont antéro-dorsales, antéro-ventrales, postéro-dorsales ou encore postéro-ventrales. (fr)
  • La chetotassi dei Ditteri è un carattere morfologico utilizzato per la descrizione e la determinazione tassonomica all'interno di questo ordine. Fa fondamentalmente riferimento ad una codificazione della distribuzione degli annessi tricoidei più vistosi (setole o macrotrichi o macrochete) nelle più importanti regioni del corpo. Questa codificazione è particolarmente accurata nel caso del capo e del torace, tuttavia, ai fini tassonomici, la descrizione si estende talvolta anche alla chetotassi delle antenne, delle zampe, delle ali e dell'addome. Nella maggior parte dei casi, questi annessi tegumentali sono apomorfie impiegate per l'analisi cladistica, spesso come elementi fondamentali per la definizione dei nodi. (it)
  • Chetotaksja – liczba i rozmieszczenie szczecinek na zewnętrznej powierzchni ciała bezkręgowca oraz ich nazewnictwo i klasyfikacja. Cecha ta jest stała i użyteczna w taksonomii i oznaczaniu wielu grup. Chetotaksja odgrywa ważną rolę diagnostyczną w takich grupach stawonogów jak roztocze, zaleszczotki, widłonogi, skąponogi, drobnonogi, pareczniki, pierwogonki, skoczogonki, muchówki czy larwy chrząszczy i sieciarek. (pl)
  • Хетотаксия (от др.-греч. χαίτη «(длинные) волосы, кудри, грива» и τάξις «строй, порядок») — расположение (и тип) щетинок, подвижно находящихся в особых ямках и имеющих особые нервные окончания, на теле и отдельных органах, преимущественно членистоногих. Отличается большим постоянством и играет большую роль при определении биологических видов. Часто отражает метамерию тела. (ru)
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