Samiksha Jaiswal (Editor)

Dwarf sheet spider

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Kingdom
  
Infraorder
  
Phylum
  
Rank
  
Family

Subphylum
  
Scientific name
  
Hahniidae

Higher classification
  
Dictynoidea

Order
  
Spider

Dwarf sheet spider m6ipbasecomg1559327552128982616uAI4vLh0jpg

Similar
  
Anapidae, Prodidomidae, Mysmenidae, Amphinectidae, Gallieniellidae

The dwarf sheet spiders (family Hahniidae) are small spiders, their bodies are about 2 mm in length. They build extremely delicate webs in the form of a sheet, and unlike many spiders the web does not lead to a retreat. The silk used in these webs is so fine that they are difficult to spot unless they are coated with dew. They greatly favor locations near water or near moss, and are often found in leaf litter and detritus or on the leaves of shrubs and trees.

Contents

Description

They are characterized by the arrangement of their six spinnerets in a transverse row. The last segment of the outer spinnerets is quite long and stands out above all the others.

Distribution

Hahniidae are a worldwide family. The genera of the Northern Hemisphere and Africa tend to differ in their genital structures from those of the Southern Hemisphere. Very few species have been described from south east Asia, although quite a number seems to be yet undescribed.

Name

The family is named after the type genus Hahnia, which is dedicated to German zoologist Carl Wilhelm Hahn.

Genera

  • Alistra Thorell, 1894 — Oceania, Philippines, Sumatra, Sri Lanka
  • Amaloxenops Schiapelli & Gerschman, 1958 — Argentina
  • Antistea Simon, 1898 — North America, Europe, Russia
  • Asiohahnia Ovtchinnikov, 1992 — Kazakhstan, Kirgizistan
  • Austrohahnia Mello-Leitão, 1942 — Argentina
  • Calymmaria Chamberlin & Ivie, 1937 — Mexico to Canada
  • Cryphoeca Thorell, 1870 — Palearctic
  • Cryphoecina Deltshev, 1997 — Montenegro
  • Cybaeolus Simon, 1884 — Chile, Argentina
  • Dirksia Chamberlin & Ivie, 1942 — United States, Alaska, France
  • Ethobuella Chamberlin & Ivie, 1937 — North America
  • Hahnia C. L. Koch, 1841 — America, Africa, Europe, Asia
  • Harmiella Brignoli, 1979 — Brazil
  • Iberina Simon, 1881 — Russia, France
  • Intihuatana Lehtinen, 1967 — Argentina
  • Kapanga Forster, 1970 — New Zealand
  • Lizarba Roth, 1967 — Brazil
  • Neoantistea Gertsch, 1934 — Canada to Costa Rica, Russia, Asia
  • Neoaviola Butler, 1929 — Australia
  • Neocryphoeca Roth, 1970 — USA
  • Neohahnia Mello-Leitão, 1917 — South America
  • Pacifantistea Marusik, 2011 — Kuril Islands
  • Porioides Forster, 1989 — New Zealand
  • Rinawa Forster, 1970 — New Zealand
  • Scotospilus Simon, 1886 — Tasmania, New Zealand, India
  • Tuberta Simon, 1884 — Europe to Azerbaijan
  • Willisus Roth, 1981 — USA
  • References

    Dwarf sheet spider Wikipedia