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Linyphiidae  Blackwall, 1859 / Porrhomma  Simon, 1884   16 species

Porrhomma egeria  Simon, 1884

WSC LSID urn:lsid:nmbe.ch:spidersp:012407

Key to genera | Key to species

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 mm
Body 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. 2018)

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2021): Europe
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
species

male Pedipalp, ventral view
(Heimer & Nentwig 1991)

species

male Pedipalp, ventral view
(Wiehle 1956)

species

male Pedipalp, ventral view
(Roberts 1987)

species

male Tip of pedipalp
(Roberts 1987)

species

male Embolic division
(Locket & Millidge 1953)

species

male Embolic division
(Løvbrekke unpubl.)

species

male Embolic division
(Růžička 2018)

species

male Bulbal apophysis
(Løvbrekke unpubl.)

species

female Epigyne
(Wiehle 1956)

species

female Epigyne
(Roberts 1987)

species

female Epigyne
(Roberts 1987)

species

female Epigyne
(Roberts 1987)

species

female Epigyne
(Roberts 1987)

species

female Epigyne
(Roberts 1987)

species

female Epigyne
(Locket & Millidge 1953)

species

female Epigyne
(Miller & Obrtel 1975)

species

female Epigyne
(Růžička 2018)

species

female Vulva
(Heimer & Nentwig 1991)

species

female Vulva
(Wiehle 1956)

species

female Vulva
(Locket & Millidge 1953)

species

female Vulva, ventral view
(Miller & Obrtel 1975)

species

female Vulva, dorsal view
(Miller & Obrtel 1975)

species

female Vulva, dorsal view
(Løvbrekke unpubl.)

species

female Vulva, caudal view
(Růžička 2018)

species

female Vulva, dorsal view
(Růžička 2018)

species

female Vulva, ventral view
(Růžička 2018)

species

female Vulva, caudal view
(Růžička & Růžička 2019)

species

female Vulva, dorsal view
(Růžička & Růžička 2019)

species

female Prosoma, frontal view
(Løvbrekke unpubl.)

species

female Eyes, dorsal view
(Roberts 1987)

species

female Eyes, frontal view
(Růžička 2018)

species

female Femur I
(Løvbrekke unpubl.)

species

female Habitus
(Løvbrekke unpubl.)

species

Eyes, dorsal view
(Wiehle 1956)

species

Eyes, dorsal view
(Locket & Millidge 1953)

species

Eyes, dorsal view
(Miller & Obrtel 1975)

Distribution List
Austria   (no references) ||| Belgium   (no references) ||| Czechia   (no references) ||| Denmark   (no references) ||| Faroe Islands   (Lissner et al., 2016b) ||| Finland   (Koponen et al., 2016) ||| France   (no references) ||| Germany   (no references) ||| Ireland   (no references) ||| Italy   (Pantini & Isaia, 2019) ||| Italy / Sicily   (Pantini & Isaia, 2019) ||| Latvia   (Cera, 2018) ||| Luxembourg   (Kreuels et al., 2019) ||| Netherlands   (no references) ||| Poland   (no references) ||| Romania   (no references) ||| Russia, Central   (no references) ||| Russia, Eastern   (no references) ||| Russia, Northern   (no references) ||| Russia, Western   (no references) ||| Slovakia   (no references) ||| Slovenia   (Kostanjšek & Kuntner, 2015) ||| Sweden   (Kronestedt, 2001) ||| Switzerland   (no references) ||| United Kingdom   (no references) |||
References

Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152 pdf

Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin pdf

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 pdf

Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91 pdf

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 pdf

Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001] pdf

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 pdf

Locket G H, Millidge A F (1953) British spiders. Vol. II. Ray Society, London, 449 pp. pdf

Løvbrekke H (unpubl.)

Mammola S, Cardoso P, Ribera C, Pavlek M, Isaia M (2018b) A synthesis on cave-dwelling spiders in Europe. Zoological Systematics and Evolutionary Research 56: 301-316 pdf

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 pdf

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 pdf

Roberts M J (1987) The spiders of Great Britain and Ireland. Volume 2: Linyphiidae and checklist. Harley Books Colchester, England, 204 pp. pdf

Růžička V (2018) A review of the spider genus Porrhomma (Araneae, Linyphiidae). Zootaxa 4481: 1-75 pdf

Růžička V, Růžička A (2019) Three-dimensional modelling in arachnology as exemplified using Porrhomma-species (Araneae: Linyphiidae). Arachnologische Mitteilungen 58: 1-3 pdf

Staudt A, Weber D, Nährig D (2013) Webspinnen (Arachnida,  Araneae) aus Höhlen des Großherzogtums Luxemburg. Ferrantia 69: 115-157 pdf

Wiehle H (1956) Spinnentiere oder Arachnoidea, X. 28: Familie Linyphiidae-Baldachinspinnen. Die Tierwelt Deutschlands 44: 1-337 pdf

WSC (2021) World Spider Catalog. Version 22.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (22.09.2021) doi: 10.24436/2 pdf

Updates
21-06-2019 Image insert
21-09-2018 Image insert
28-04-2013 Distribution update Detail