Austrochilidae

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Family of spiders

title: "Austrochilidae" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["austrochilidae", "spiders-of-australia", "spiders-of-south-america", "araneomorphae-families"] description: "Family of spiders" topic_path: "geography/australia" source: "https://en.wikipedia.org/wiki/Austrochilidae" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Family of spiders ::

| name = | image = Thaida peculiaris - Hernan Augusto Iuri - 107756308.jpeg | image_caption = Thaida peculiaris | image2 = Austrochilidae spiderweb.jpg | image2_caption = Web of Austrochilidae species | taxon = Austrochilidae | authority = Zapfe, 1955 | subdivision_ranks = Genera | subdivision = {{linked genus list |Austrochilus|Gertsch & Zapfe, 1955 |Thaida|Karsch, 1880}} | diversity = 2 genera, 9 species | range_map = Austrochilidae range map.svg | range_map_caption = blue: reported countries (WSC)

Austrochilidae is a small spider family with nine species in two genera. Austrochilus and Thaida are endemic to the Andean forest of central and southern Chile and adjacent Argentina.

Taxonomy

::figure[src="https://upload.wikimedia.org/wikipedia/commons/b/bf/Thaida_chepu_male,_eyes.jpg" caption="''[[Thaida chepu]]'', male eyes"] ::

, two genera are placed in the family Austrochilidae: Austrochilus and Thaida, found in Chile and Argentina. The taxonomic placement of these genera has varied.

In 1968, Lehtinen synonymized Austrochilus and Thaida under the latter name, placing the genus in a family he called "Thaididae". However, the family name "Thaididae" is preoccupied, being first used for a family of gastropods in 1887.

A single family was accepted by Forster et al. in 1987, under the name "Austrochilidae". Molecular phylogenetic studies agree in placing the two genera as basal members of the Araneomorphae, although the precise details and the family placement are not yet agreed.

Phylogeny

One hypothesis for the phylogeny of the genera placed in the family is shown below (Austrochilidae genera in bold). The family shows a mixture of "primitive" and "advanced" features. The retention of four book lungs places the family at the base of the Araneomorphae, whereas some features of their silk production are regarded as derived.

|label1=Araneomorphae |1={{clade |1=Hypochilidae + Filistatidae + Synspermiata |2={{clade |1={{clade |1=Archoleptoneta |2=Gradungulidae |2={{clade |1={{clade |1=Leptoneta |2=Austrochilus + Thaida |2=remaining Araneomorphae

Genera

, this family includes two genera and nine species:

References

  • Grismado, C. J., L. Lopardo & N. I. Platnick (2003). A new species of Austrochilus from Chile (Araneae, Austrochilidae, Austrochilinae). J. Arachnol. 31: 148–150. PDF (A. forsteri)

References

  1. "Family Austrochilidae Zapfe, 1955". World Spider Catalog.
  2. (1967). "Classification of the cribellate spiders and some allied families, with notes on the evolution of the suborder Araneomorpha". Annales Zoologici Fennici.
  3. (2016). "The spider tree of life: phylogeny of Araneae based on target-gene analyses from an extensive taxon sampling". Cladistics.

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austrochilidaespiders-of-australiaspiders-of-south-americaaraneomorphae-families