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Pholcus phalangioides
(Fuesslin, 1775)
Araña De Patas Largas

Family: Pholcidae
Order: Araneae
Class: Arachnida
Phylum / Division: Arthropoda
Kingdom: Animalia

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Records from Santa Fe

Other common names: Araña Patona, Araña De Las Casas.


Description: It has a somewhat elongated body and very long, thin legs, which is the most noticeable characteristic when differentiating it from spiders of other families. However, it shares this trait with other species of the Pholcidae family.

Sexual Dimorphism: Difficult to notice with the naked eye, but when observed closely, the modified pedipalps (mouthparts) of the male are visible, which serve a reproductive function. It is common to see females with their egg sac, which is circular in shape and not covered with silk, held by their chelicerae (mouthparts).

Habitat: Naturally inhabits caves and crevices, however, the species has adapted to living inside all kinds of human-made structures, both inhabited and abandoned, where it is a very abundant species.

Geographical Distribution: Cosmopolitan species, likely due to the involuntary transport of specimens by humans worldwide.

Behavior: It constructs an irregular and three-dimensional web, from which it hangs inverted. When disturbed, it performs a series of body vibrations, shaking rapidly from side to side as a defense mechanism.

Feeding: It is a sedentary species that consumes insects trapped in its web.

Author of this description: Nicolás Olejnik




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Last published photographs

Foto
Photography ID: 237382
  Adult

Santa Fe
Santa Fe
Argentina
01/02/2018
Gustavo Fernando Durán
Foto
Photography ID: 182345
  Adult

Santa Fe
Santa Fe
Argentina
12/23/2016
Gustavo Fernando Durán
Foto
Photography ID: 66573
  Adult

Santa Fe
Santa Fe
Argentina
10/07/2014
Gustavo Fernando Durán



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
156861511/04/2022ArgentinaSanta FeAvenida General López 3681, Santa Fe1Gustavo Fernando Durán
140976501/06/2021ArgentinaSanta FeAvenida General López 3681, Santa Fe1Gustavo Fernando Durán
127708101/08/2020ArgentinaSanta FeAvenida General López 3681, Santa FeGustavo Fernando Durán
66772902/01/2018ArgentinaSanta FePasaje Ingenieros 5301, Santa FeGustavo Fernando Durán
52294503/01/2017ArgentinaSanta FePasaje Ingenieros 5301, Santa Fe1Gustavo Fernando Durán
51989923/12/2016ArgentinaSanta FePasaje Ingenieros 5301, Santa FeGustavo Fernando Durán
38439002/01/2016ArgentinaSanta FePasaje Ingenieros 5301, Santa Fe3Gustavo Fernando Durán
19108007/10/2014ArgentinaSanta FePasaje Ingenieros 5301, Santa FeGustavo Fernando Durán
5770902/04/2013ArgentinaSanta FeVivienda urbana, Santa FeMartin Ferrari
Page 1

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Citation recommended:

EcoRegistros. 2026. Pholcus phalangioides - Species sheet. Acceded from https://www.ecoregistros.org on 10/03/2026.