Porrhomma microps (Roewer, 1931)
Description
Prosoma width 0.75-0.95 mm. Eyes small to reduced. Opisthosoma pale.
Body length male: 2.3-2.6 mmBody length female: 2.3-3.0 mm
Additional information
In lowland forests, also 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, lateral view
(Deltshev et al. 2003a)
Pedipalp, ventral view
(Deltshev et al. 2003a)
Tip of embolus
(Růžička 2018)
Embolic division
(Heimer & Nentwig 1991)
Embolic division
(van Helsdingen 1986a)
Embolic division
(Løvbrekke unpubl.)
Embolic division
(Růžička 2009)
Embolic division
(Růžička 2018)
Epigyne
(Miller & Obrtel 1975)
Epigyne/vulva
(Deltshev et al. 2003a)
Epigyne/vulva
(Thaler 1967)
Epigyne/vulva
(Thaler 1967)
Epigyne
(van Helsdingen 1986a)
Epigyne
(Løvbrekke unpubl.)
Epigyne
(Růžička 2018)
Vulva
(Heimer & Nentwig 1991)
Vulva
(Miller & Obrtel 1975)
Vulva, ventral view
(van Helsdingen 1986a)
Vulva, dorsal view
(Løvbrekke unpubl.)
Vulva, antero-ventral view
(van Helsdingen & IJland 2011)
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)
Vulva, dorsal view
(Lemke unpubl.)
Eyes, frontal view
(Růžička 2018)
Eyes, dorsal view
(Miller & Obrtel 1975)
Chelicerae, ventral 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
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) 
Blick T, Finch O-D, Harms K H, Kiechle J, Kielhorn K-H , Kreuels M, Malten A, Martin D, Muster C, Nährig D, Platen R, Rödel I, Scheidler M, Staudt A, Stumpf H, Tolke D (2016) Rote Liste und Gesamtartenliste der Spinnen (Arachnida: Araneae) Deutschlands. 3. Fassung, Stand April 2008, einzelne Änderungen und Nachträge bis August 2015. Naturschutz und Biologische Vielfalt 70/4: 383-510
Deltshev C, Lazarov S, Petrov B P (2003a) A contribution to the study of spiders (Araneae) from the caves of Bulgaria. Acta Zoologica Bulgarica 55: 9-28
Gajdoš P, Svatoň J, Sloboda J (1999) Katalóg pavúkov Slovenska. Catalogue of Slovakian spiders. Ústav kr. ekol. SAV, Bratislava, 337 pp.
Gnelitsa V A (2004b) [Preliminary data on spiders of the family Linyphiidae of the Vyzhnitsky National Nature Park (Carpathians, Ukraine)]. Nature Reserves in Ukraine 10: 86-89
Grbić G, Hänggi A, Krnjajić S (2021) Spiders (Araneae) of Subotica Sandland (Serbia): additional arguments in environmental protection. Acta Zoologica Academiae Scientiarum Hungaricae 67: 15-61
Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin
Helsdingen P J van (1986a) The Porrhomma microphthalmum species-group. Bulletin of the British Arachnological Society 7: 11-16
Helsdingen P J van (2025a) Catalogus van de Nederlandse spinnen. Versie 2025.1. 249 pp.
Helsdingen P J van, IJland S (2011) Porrhomma microcavense Wunderlich, 1990 (Araneae, Linyphiidae) new for the Netherlands. Nieuwsbrief SPINED 31: 23-26
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]
Kropf C, Horak P (1996) Die Spinnen der Steiermark (Arachnida, Araneae). Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark Sonderheft: 1-112
Lemke M (unpubl.) .
Løvbrekke H (unpubl.)
Mammola S, Pavlek M, Huber B A, Isaia M, 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
Maurer R, Hänggi A (1990) Katalog der schweizerischen Spinnen. Documenta Faunistica Helvetiae 12
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
Otto S (2022) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 02.2022. 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). Fragmenta Entomologica 51: 127-152
Růžička V (2009) The European species of the microphthalmum-group in the genus Porrhomma (Araneae: Linyphiidae). Contributions to Natural History 12: 1081-1094
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
Scharff N, Gudik-Sørensen O (2006) Katalog over Danmarks edderkopper (Araneae). Catalogue of the spiders of Denmark (Araneae). Entomologiske Meddelelser 74: 3-71
Thaler K (1967) Zum Vorkommen von Troglohyphantes-Arten in Tirol und dem Trentino (Arachn., Araneae, Linyphiidae). Berichte des Naturwissenschaftlich-Medizinischen Vereins in Innsbruck 55: 155-173
Thaler K (1995) Beiträge zur Spinnenfauna von Nordtirol - 5. Linyphiidae 1: Linyphiinae (sensu Wiehle) (Arachnida: Araneida). Berichte des Naturwissenschaftlich-Medizinischen Vereins in Innsbruck 82: 153-190
Weiss I, Petrișor A (1999) List of the spiders (Arachnida: Araneae) from Romania. Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 41: 79-107
WSC (2025) World Spider Catalog. Version 26. Natural History Museum Bern, online at http://wsc.nmbe.ch (28.2.2025) doi: 10.24436/2