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
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
Isaia M, Tolve M, Pantini P (2025) Araneae.it: 2.0: the new updated version of the digital catalog of the Italian spiders and other arachnids (Arachnida: Araneae, Opiliones, Scorpiones, Pseudoscorpiones, Palpigradi, Solifugae). Fragmenta Entomologica 57: 197-204
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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.
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 (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (13.2.2026) doi: 10.24436/2