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Linyphiidae  Blackwall, 1859 / Porrhomma  Simon, 1884   15 species

Porrhomma convexum  (Westring, 1851)

WSC LSID urn:lsid:nmbe.ch:spidersp:012405

Key to genera | Key to species

Description

Cymbium 0.37-0.39 mm long. Prosoma width female: 0.76-0.87 mm, prosoma width male: 0.79-0.92 mm. Femur I male: 0.99-1.07 mm long.

Body length male: 2.2-3.2 mm
Body length female: 2.2-3.2 mm
Additional information

On runnels and on banks of creeks, in caves and mines, up to the alpine level

Troglophile species (Mammola et al. 2018b)

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2020): USA, Canada, Greenland, Europe, Caucasus, Russia (Europe, West Siberia), Kazakhstan, Iran
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
species

male Pedipalp, retrolateral view
(Wiehle 1956)

species

male Pedipalp, retrolateral view
(Roberts 1987)

species

male Pedipalp, prolateral view
(Wiehle 1956)

species

male Pedipalp, retrolateral view
(Løvbrekke unpubl.)

species

male Pedipalp, prolateral view
(Løvbrekke unpubl.)

species

male Pedipalp, expanded, prolateral view
(Breitling 2020)

species

male Tip of pedipalp
(Roberts 1987)

species

male Embolic division
(Heimer & Nentwig 1991)

species

male Embolic division
(Locket & Millidge 1953)

species

male Embolic division
(Løvbrekke unpubl.)

species

male Embolic division
(Růžička 2018)

species

male Eyes, frontal view
(Løvbrekke unpubl.)

species

male Habitus
(Løvbrekke unpubl.)

species

female Epigyne
(Wiehle 1953)

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
(Løvbrekke unpubl.)

species

female Epigyne
(Růžička 2018)

species

female Vulva
(Heimer & Nentwig 1991)

species

female Vulva
(Brignoli 1975a)

species

female Vulva
(Locket & Millidge 1953)

species

female Vulva, dorsal view
(Løvbrekke unpubl.)

species

female Vulva, ventral 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, dorsal view
(Fjellberg unpubl.)

species

female Eyes, frontal view
(Růžička 2018)

species

female Habitus, dorsal view
(Fjellberg unpubl.)

species

Eyes, dorsal view
(Wiehle 1956)

species

Eyes, dorsal view
(Wiehle 1956)

Distribution List
Albania   (no references) ||| Austria   (no references) ||| Belarus   (Ivanov, 2013) ||| Belgium   (no references) ||| Bosnia and Herzegovina   (Komnenov, 2010) ||| Bulgaria   (Blagoev et al., 2018) ||| Croatia   (no references) ||| Czechia   (no references) ||| Denmark   (no references) ||| Estonia   (no references) ||| Faroe Islands   (Lissner et al., 2016b) ||| Finland   (Koponen et al., 2016) ||| France   (no references) ||| Georgia   (Otto, 2020) ||| Germany   (no references) ||| Greece   (no references) ||| Hungary   (Samu & Szinetár, 1999) ||| Iceland   (Agnarsson, 1996) ||| Ireland   (no references) ||| Italy   (Pantini & Isaia, 2019) ||| Italy / Sardinia   (Pantini & Isaia, 2019) ||| Liechtenstein   (no references) ||| Luxembourg   (Kreuels et al., 2019) ||| Montenegro   (no references) ||| Netherlands   (no references) ||| North Macedonia   (no references) ||| Northern Ireland   (no references) ||| Norway   (Aakra & Hauge, 2003) ||| Poland   (no references) ||| Romania   (no references) ||| Russia, Central   (no references) ||| Russia, Eastern   (no references) ||| Russia, Northern   (no references) ||| Russia, Southern   (Otto, 2020) ||| Russia, Western   (no references) ||| Serbia   (no references) ||| Slovakia   (no references) ||| Slovenia   (Kostanjšek & Kuntner, 2015) ||| Sweden   (Kronestedt, 2001) ||| Switzerland   (no references) ||| Turkey (Asia)   (no references) ||| Turkey (Europe)   (no references) ||| Ukraine   (Polchaninova & Prokopenko, 2019) ||| United Kingdom   (no references) |||
References

Aakra K, Hauge E (2003) Checklist of Norwegian spiders (Arachnida: Araneae), including Svalbard and Jan Mayen. Norwegian Journal of Entomology 50: 109-129 pdf

Agnarsson I (1996) Íslenskar köngulær Fjölrit Náttúrufræðistofnunar 31: 1-175 pdf

Blagoev G, Deltshev C, Lazarov S, Naumova M (2018) The spiders (Araneae) of Bulgaria. Version: August 2018. National Museum of Natural History, Bulgarian Academy of Sciences. Online at http://www.nmnhs.com/spiders-bulgaria/ (accessed on 10.9.2018) pdf

Breitling R (2020) South European spiders from the Duffey collection in the Manchester Museum (Arachnida: Araneae). Arachnology 18: 333-362 pdf

Brignoli P M (1975a) Ragni d'Italia XXV. Su alcuni ragni cavernicoli dell'Italia settentrionale (Araneae). Notiziario del Circolo Speleologico Romano 20: 7-39 pdf

Deltshev C (2011a) The faunistic diversity of cave-dwelling spiders (Arachnida, Araneae) of Greece. Arachnologische Mitteilungen 40: 23-32 pdf

Demircan N, Topçu A (2016) First records for spider fauna of the European part of Turkey (Araneae). Serket 15: 85-91 pdf

Fjellberg A (unpubl.)

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

Ivanov V V (2013) The checklist of Belarusian spiders (Arachnida, Araneae). Zoology and Ecology 4: 293-311 pdf

Komnenov M (2010) Checklist of spiders (Araneae) of Bosnia and Herzegovina. Uzizaž i Biospeld 5(2009): 52-69 pdf

Komnenov M (2011) Preliminary report on the results of investigation on the cave spider fauna in the frame of international speleological expedition to mountain Hekurave, south slopes of Prokletije, Albania. Progressione 57: 144-146 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 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 pdf

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

Otto S (2020) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 03.2020. Internet: caucasus-spiders.info.

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). http://araneae.it. Fragmenta Entomologica 51: 127-152 pdf

Polchaninova N, Prokopenko E (2019) An updated checklist of spiders (Arachnida: Araneae) of Left-Bank Ukraine. Arachnologische Mitteilungen 57: 60-64 & App 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

Samu F, Szinetár C (1999) Bibliographic check list of the Hungarian spider fauna. Bulletin of the British Arachnological Society 11: 161-184 pdf

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

Wiehle H (1953) Spinnentiere oder Arachnoidea (Araneae), IX. Orthognatha-Cribellata-Haplogynae, Entelegynae (Pholcidae, Zodariidae, Oxyopidae, Mimetidae, Nesticidae). Die Tierwelt Deutschlands 42: 1-150 pdf

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

World Spider Catalog (2020) World Spider Catalog. Version 21.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.03.2020) doi: 10.24436/2 pdf

Updates
25-07-2020 Image insert
08-06-2020 Distribution update Detail
07-01-2020 Distribution update Detail
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01-12-2013 Distribution update Detail
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28-04-2013 Distribution update Detail