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Pholcus phalangioides

Pholcus phalangioides

(Fuesslin, 1775)
Araña De Patas Largas

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

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





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Records from Zona urbana


Description


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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Species photographs

Last published photographs

Foto
Photography ID: 554221
♀
  Adult

Paraná
Entre Ríos
Argentina
10/29/2023
Néstor Trossero
Foto
Photography ID: 554219
♀
  Adult

Paraná
Entre Ríos
Argentina
10/29/2023
Néstor Trossero
Foto
Photography ID: 452844
♀
  Adult

Paraná
Entre Ríos
Argentina
07/02/2021
Néstor Trossero
Foto
Photography ID: 408277
  Adult

Paraná
Entre Ríos
Argentina
08/17/2020
Néstor Trossero
Foto
Photography ID: 351953
  Adult

Paraná
Entre Ríos
Argentina
09/21/2019
Néstor Trossero
Foto
Photography ID: 351066
♀
  Juvenile

Paraná
Entre Ríos
Argentina
09/15/2019
Néstor Trossero
Foto
Photography ID: 333252
♀
  Adult

Paraná
Entre Ríos
Argentina
05/20/2019
Néstor Trossero
Foto
Photography ID: 317327
  Adult

Paraná
Entre Ríos
Argentina
02/19/2019
Néstor Trossero



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 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
190533029/10/2023ArgentinaEntre RíosZona urbana, ParanáNéstor Trossero
142404202/07/2021ArgentinaEntre RíosZona urbana, ParanáNéstor Trossero
128109817/08/2020ArgentinaEntre RíosZona urbana, ParanáNéstor Trossero
102817721/09/2019ArgentinaEntre RíosZona urbana, ParanáNéstor Trossero
97564115/09/2019ArgentinaEntre RíosZona urbana, ParanáNéstor Trossero
92443620/05/2019ArgentinaEntre RíosZona urbana, ParanáNéstor Trossero
88783619/02/2019ArgentinaEntre RíosZona urbana, ParanáNéstor Trossero
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Pholcus phalangioides – Species account. Accessed from www.ecoregistros.org on 02/10/2026.