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Dictyna

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Brief Summary

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Dictyna is a genus of small (3,7), web-spinning spiders that live all over the world (14).Although the delineation of this genus and its relationship to other closely-related genera are not entirely clear (16), the approximately 120 known species (13) classified in the genus Dictyna tend to have relatively wide abdomens, short legs, and a well-defined cardiac mark (the abdominal marking over the heart [17])(7).Their mouthparts, like those of other spiders in the family Dictynidae, are disproportionately long, especially in males (7,14). Dictyna spiders often build their webs on the leaves, twigs, bark, and dried flower heads of plants (4,10,11,12,18) - though they can also be found on walls and in the corners of windows(14). Most species in this genus are solitary (like the majority of spiders), but a few have a more unusual lifestyle, living in groups in a large web divided into individual units (5, 6). Like those of some other groups of spiders (15), the webs of Dictyna spiders are made in part of an old and energetically-expensive form of silk known as cribellate silk (2,5,12), each thread of which contains hundreds or even thousands of tiny fibers with dry-adhesive properties (1,2,5,15). Dictyna spiders spin these along with thicker strands of silk to form dense, zig-zagging, sometimes tent-like tangles that are especially good at catching insects (1,5,12,14,15,18). As these spiders frequently choose fruit trees (such as apple, pear, and citrus trees) (4, 10, 11) and other crop plants like cotton and alfalfa as their web-building locations, the insects they catch are often pests of these agricultural crops (10, 11). Like many other spiders (9), Dictyna spiders provide a significant service to humans by capturing and eating these insects, which include (among others) flies, leafhoppers, and aphids (10, 11). However, these spiders are also sometimes major predators of insects that are helpful in keeping invasive plant species such as spotted knapweed and yellow starthistle under control (19). Because the spread of these weeds can pose dangers to native plant life, cropland, pastures, and even horses (8, 20), these spiders can have a negative impact as well (19).
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Dictyna ( Catalan; Valencian )

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Dictyna civica

Dictyna és un gènere d'aranyes araneomorfes de la família dels dictínids (Dictynidae). Fou descrita per primera vegada l'any 1833 per Sundevall.[2]

Espècies

Segons el World Spider Catalog del 28 de novembre de 2018, existeixen les següents espècies:[2]

Referències

  1. ↑ Sundevall, 1833: Conspectus Arachnidum. Londini Gothorum, p.1-39.
  2. ↑ 2,0 2,1 «Gen. Dictyna Sundevall, 1833». World Spider Catalog. [Consulta: 28 novembre 2018].

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Dictyna: Brief Summary ( Catalan; Valencian )

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src= Dictyna civica

Dictyna és un gènere d'aranyes araneomorfes de la família dels dictínids (Dictynidae). Fou descrita per primera vegada l'any 1833 per Sundevall.

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Dictyna

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Dictyna is a genus of cribellate araneomorph spiders in the family Dictynidae, and was first described by Carl Jakob Sundevall in 1833.[2]

Species

As of May 2019 it contains 118 species:[1]

References

  1. ^ a b "Gen. Dictyna Sundevall, 1833". World Spider Catalog Version 20.0. Natural History Museum Bern. 2019. Retrieved 2019-06-01.
  2. ^ Sundevall, C. J. (1833). Conspectus Arachnidum.

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Dictyna: Brief Summary

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Dictyna is a genus of cribellate araneomorph spiders in the family Dictynidae, and was first described by Carl Jakob Sundevall in 1833.

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Dictyna ( Spanish; Castilian )

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Dictyna es un género de arañas araneomorfas de la familia Dictynidae. Se encuentra en América, Eurasia, África y Oceanía.

Lista de especies

Según The World Spider Catalog 12.0:[1]​

Referencias

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Dictyna: Brief Summary ( Spanish; Castilian )

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Dictyna es un género de arañas araneomorfas de la familia Dictynidae. Se encuentra en América, Eurasia, África y Oceanía.

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Dictyna ( French )

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Dictyna est un genre d'araignées aranéomorphes de la famille des Dictynidae[1].

Distribution

Les espèces de ce genre se rencontrent en Amérique, en Asie, en Afrique, en Europe et en Océanie[1].

Liste des espèces

Selon World Spider Catalog (version 23.0, 06/03/2022)[2] :

Selon World Spider Catalog (version 20.5, 2020)[3] :

Systématique et taxinomie

Ce genre a été décrit par Sundevall en 1833.

Publication originale

  • Sundevall, 1833 : Conspectus Arachnidum. Londini Gothorum, p. 1-39.

Notes et références

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Dictyna: Brief Summary ( French )

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Dictyna est un genre d'araignées aranéomorphes de la famille des Dictynidae.

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Dictyna ( Dutch; Flemish )

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Dictyna is een geslacht van spinnen uit de familie van de Dictynidae (kaardertjes).

Soorten

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Dictyna: Brief Summary ( Dutch; Flemish )

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Dictyna is een geslacht van spinnen uit de familie van de Dictynidae (kaardertjes).

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Dictyna ( Romanian; Moldavian; Moldovan )

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Dictyna este un gen de păianjeni din familia Dictynidae.[1]

Specii[1]

Referințe

  1. ^ a b Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (red.) (2011). „Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist”. Species 2000: Reading, UK. Accesat în 24 september 2012. Verificați datele pentru: |access-date= (ajutor)Mentenanță CS1: Nume multiple: lista autorilor (link)

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Dictyna: Brief Summary ( Romanian; Moldavian; Moldovan )

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Dictyna este un gen de păianjeni din familia Dictynidae.

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Dictyna ( Vietnamese )

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Dictyna là một chi nhện trong họ Dictynidae.[1]

Hình ảnh

  • Dictyna pair in web (4604617748).jpg
  • Dictyna sp. (4565903035).jpg

Chú thích

  1. ^ Norman I. Platnick. “The World Spider Catalog, Version 13.5”. Truy cập ngày 3 tháng 6 năm 2013.

Tham khảo


Bài viết về họ nhện Dictynidae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Dictyna: Brief Summary ( Vietnamese )

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Dictyna là một chi nhện trong họ Dictynidae.

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