Austrochilidae
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Austrochilidae is a small spider family with nine species in two genera.[1] Austrochilus and Thaida are endemic to the Andean forest of central and southern Chile and adjacent Argentina.[2]
Taxonomy
As of 2026[update], two genera are placed in the family Austrochilidae: Austrochilus and Thaida, found in Chile and Argentina.[1] 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".[3] However, the family name "Thaididae" is preoccupied, being first used for a family of gastropods in 1887.[1]
A single family was accepted by Forster et al. in 1987, under the name "Austrochilidae".[2] 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.[4]
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.[4]
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Genera
As of January 2026[update], this family includes two genera and nine species:[1]
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References
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- ^ a b c d Page Module:Citation/CS1/styles.css has no content."Family Austrochilidae Zapfe, 1955". World Spider Catalog. doi:10.24436/2. Retrieved 2026-01-18.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Forster, R.R.; Platnick, N.I. & Gray, M.R. (1987). "A review of the spider superfamilies Hypochiloidea and Austrochiloidea (Araneae, Araneomorphae)" (PDF). American Museum of Natural History. 185 (1). Retrieved 2017-05-11.
- ^ Page Module:Citation/CS1/styles.css has no content.Lehtinen, P.T. (1967). "Classification of the cribellate spiders and some allied families, with notes on the evolution of the suborder Araneomorpha". Annales Zoologici Fennici. 4: 199–468.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Wheeler, Ward C.; Coddington, Jonathan A.; Crowley, Louise M.; Dimitrov, Dimitar; Goloboff, Pablo A.; Griswold, Charles E.; Hormiga, Gustavo; Prendini, Lorenzo; Ramírez, Martín J.; Sierwald, Petra; Almeida-Silva, Lina; Alvarez-Padilla, Fernando; Arnedo, Miquel A.; Benavides Silva, Ligia R.; Benjamin, Suresh P.; Bond, Jason E.; Grismado, Cristian J.; Hasan, Emile; Hedin, Marshal; Izquierdo, Matías A.; Labarque, Facundo M.; Ledford, Joel; Lopardo, Lara; Maddison, Wayne P.; Miller, Jeremy A.; Piacentini, Luis N.; Platnick, Norman I.; Polotow, Daniele; Silva-Dávila, Diana; Scharff, Nikolaj; Szűts, Tamás; Ubick, Darrell; Vink, Cor J.; Wood, Hannah M. & Zhang, Junxia (2016). "The spider tree of life: phylogeny of Araneae based on target-gene analyses from an extensive taxon sampling". Cladistics. 33 (6): 574–616. doi:10.1111/cla.12182. PMID 34724759. S2CID 35535038.
- 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)
External links
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