Porrhomma egeria Simon, 1884
Description
Male palp with short upper apophysis, weakly sclerotised. Prosoma width female: 0.77-0.84 mm. eyes reduced, distance posterior median eyes to posterior lateral eyes 2.4-5.4 diameter.
Body length male: 2.3-3.2 mmBody length female: 2.3-3.2 mm
Additional information
from the lowland to alpine region, under rocky debris, in caves
Troglophile species (Mammola et al., 2022)
Character states from linyphiid key
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, ventral view
(Heimer & Nentwig 1991)
Pedipalp, ventral view
(Wiehle 1956)
Pedipalp, ventral view
(Roberts 1987)
Tip of pedipalp
(Roberts 1987)
Embolic division
(Locket & Millidge 1953)
Embolic division
(Løvbrekke unpubl.)
Embolic division
(Růžička 2018)
Bulbal apophysis
(Løvbrekke unpubl.)
Epigyne
(Wiehle 1956)
Epigyne
(Roberts 1987)
Epigyne
(Roberts 1987)
Epigyne
(Roberts 1987)
Epigyne
(Roberts 1987)
Epigyne
(Roberts 1987)
Epigyne
(Locket & Millidge 1953)
Epigyne
(Miller & Obrtel 1975)
Epigyne
(Růžička 2018)
Vulva
(Heimer & Nentwig 1991)
Vulva
(Wiehle 1956)
Vulva
(Locket & Millidge 1953)
Vulva, ventral view
(Miller & Obrtel 1975)
Vulva, dorsal view
(Miller & Obrtel 1975)
Vulva, dorsal view
(Løvbrekke unpubl.)
Vulva, caudal view
(Růžička 2018)
Vulva, dorsal view
(Růžička 2018)
Vulva, ventral view
(Růžička 2018)
Vulva, caudal view
(Růžička & Růžička 2019)
Vulva, dorsal view
(Růžička & Růžička 2019)
Prosoma, frontal view
(Løvbrekke unpubl.)
Eyes, dorsal view
(Roberts 1987)
Eyes, frontal view
(Růžička 2018)
Femur I
(Løvbrekke unpubl.)
Habitus
(Løvbrekke unpubl.)
Eyes, dorsal view
(Wiehle 1956)
Eyes, dorsal view
(Locket & Millidge 1953)
Eyes, dorsal view
(Miller & Obrtel 1975)
Distribution List
"No references" does not mean that the species does not occur in this country, but that we have not yet inserted the reference for it. We are working on it.
References
Bosmans R, Van Keer K (2017) Een herziene soortenlijst van de Belgische spinnen (Araneae). Nieuwsbrief van de Belgische Arachnologische Vereniging 32: 39-69 
Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152
Gnelitsa V A (2005) [Preliminary data on spiders of the family Linyphiidae of the National Natural Park "Synevyr" (Carpathians, Ukraine)]. Nature Reserves in Ukraine 11: 54-59
Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin
Koponen S, Fritzén N R, Pajunen T (2016) Checklist of spiders in Finland (Araneae). 6th version, December 2016, online at http://biolcoll.utu.fi/arach/checklist_of_spiders_in_Finland.htm
Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91
Kreuels M, Staudt A, Christian S (2019) Die Spinnenfauna von Luxemburg – eine Zusammenstellung der Nachweise aus den Jahren 1906-2018 (Arachnida: Araneae). Bulletin de la Société des naturalistes luxembourgeois 121: 203-230
Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001]
Lavery A (2019) A revised checklist of the spiders of Great Britain and Ireland. Arachnology 18: 196-212
Lissner J, Jensen J-K, Hansen L J, Simonsen W, Kelduni R, Nissen K (2016b) An updated checklist of spiders (Araneae) of the Faroe Islands. Norwegian Journal of Entomology 63: 197-240
Locket G H, Millidge A F (1953) British spiders. Vol. II. Ray Society, London, 449 pp.
Løvbrekke H (unpubl.)
Mammola et al. (2019b) Continental data on cave-dwelling spider communities across Europe (Arachnida: Araneae). [et al. = Cardoso P, Angyal D, Balázs G, Blick T, Brustel H, Carter J, Ćurčić S, Danflous S, Dányi L, Déjean S, Deltshev C, Elverici M, Fernández J, Gasparo F, Komnenov M, Komposch C, Kováč L, Kunt K B, Mock A, Moldovan O, Naumova M, Pavlek M, Prieto C E, Ribera C, Rozwałka R, Růžička V, Vargovitsh R S, Zaenker S, Isaia M] Biodiversity Data Journal 7(e38492): 1-15
Mammola S, Pavlek M, Huber B A, Ballarin F, Tolve M, Čupić I, Hesselberg T, Lunghi E, Mouron S, Graco-Roza C, Cardoso P (2022) A trait database and updated checklist for European subterranean spiders. Scientific Data 9(236): 1-13
Miller F, Obrtel R (1975) Soil surface spiders in a lowland forest. Přírodovědné práce ústavů Československé Akademie Věd v Brně (N.S.) 9(4): 1-40
Pantini P, Isaia M (2019) Araneae.it: the online catalog of Italian spiders, with addenda on other arachnid orders occurring in Italy (Arachnida: Araneae, Opiliones, Palpigradi, Pseudoscorpionida, Scorpiones, Solifugae). Fragmenta Entomologica 51: 127-152
Roberts M J (1987) The spiders of Great Britain and Ireland. Volume 2: Linyphiidae and checklist. Harley Books Colchester, England, 204 pp.
Rozwałka R, Stanska M (2008) Check-list of spiders (Araneae) of Poland. 1. December 2008. online at http://www.arachnologia.edu.pl/en/species/8-spiders-of-poland.html
Růžička V (2018) A review of the spider genus Porrhomma (Araneae, Linyphiidae). Zootaxa 4481: 1-75
Růžička V, Řezáč M (2022a) Seznam pavouků České republiky. List of spiders of the Czech Republic. Online at https://www.arachnology.cz/seznam-pavouku-cr-26.html and https://www.arachnology.cz/en/seznam-pavouku-cr-26.html
Růžička V, Růžička A (2019) Three-dimensional modelling in arachnology as exemplified using Porrhomma-species (Araneae: Linyphiidae). Arachnologische Mitteilungen 58: 1-3
Staudt A, Weber D, Nährig D (2013) Webspinnen (Arachnida, Araneae) aus Höhlen des Großherzogtums Luxemburg. Ferrantia 69: 115-157
Wiehle H (1956) Spinnentiere oder Arachnoidea, X. 28: Familie Linyphiidae-Baldachinspinnen. Die Tierwelt Deutschlands 44: 1-337
WSC (2024) World Spider Catalog. Version 25.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (22.01.2024) doi: 10.24436/2