Steatoda triangulosa (Walckenaer, 1802)
Description
Male
Conductor long and bent. Tibia of male palpal longer than cymbium. Prosoma red-brown, wrinkled, 1.6-2 mm long. Sternum red-brown, wrinkled. Chelicerae brown, shiny. Legs yellowish, to bright red-brown, all segments sometimes distally darkened. Opisthosoma dark brown to almost black, pattern yellowish, sometimes broken into single spots.
Body length male: 3.5-5.0 mmFemale
Epigyne small and rounded. Prosoma 1.8-2 mm long. Colouration as in male.
Body length female: 3.5-8.6 mmAdditional information
Only in buildings in Central Europe, at dry, sunny places under stones in the south, in caves, dunes, forests, garrigue, fallow land, marshes, rocky seashore, littoral salty areas.
Since a few decades, this species shows some spreading tendencies within Europe. Nevertheless, it shall not be listed as alien or invasive because it is native for Europe.
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, ventral view
(Pesarini unpubl.)
Pedipalp, ventral view
(Roberts 1995)
Pedipalp, ventral view
(Wiehle 1937)
Pedipalp, ventral view
(Yoshida 2001a)
Pedipalp, ventral view
(Taberlet unpubl.)
Pedipalp, prolateral view
(Taberlet unpubl.)
Pedipalp, retrolateral view
(Taberlet unpubl.)
Pedipalp, ventral view
(Kovács & Szinetár 2024)
Pedipalp, prolateral view
(Van Keer et al. 2024)
Pedipalp, retrolateral view
(Van Keer et al. 2024)
Pedipalp, ventral view
(Van Keer et al. 2024)
Habitus, dorsal view
(Van Keer et al. 2024)
Epigyne
(Pesarini unpubl.)
Epigyne
(Roberts 1995)
Epigyne
(Wiehle 1937)
Epigyne
(Yoshida 2001a)
Epigyne
(Taberlet unpubl.)
Epigyne
(Taberlet unpubl.)
Epigyne
(Taberlet unpubl.)
Epigyne
(Morka unpubl.)
Epigyne, dorsal view
(Kovács & Szinetár 2024)
Epigyne
(Van Keer et al. 2024)
Epigyne, with mating plug
(Taberlet unpubl.)
Vulva
(Wiehle 1937)
Vulva
(Yoshida 2001a)
Vulva, dorsal view
(Taberlet unpubl.)
Vulva, posterior view
(Taberlet unpubl.)
Vulva, dorsal view
(Morka unpubl.)
Vulva, dorsal view
(Kovács & Szinetár 2024)
Vulva, dorsal view
(Van Keer et al. 2024)
Habitus, dorsal view
(Van Keer et al. 2024)
Habitus, ventral view
(Van Keer et al. 2024)
Habitus
(Wiehle 1937)
Habitus, dorsal view
(Faúndez & Carvajal 2016)
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
Benhacene R, Adjami A, Hadjeb A, Kermiche K, Ouakid M L (2023) Bibliographic checklist of the Algerian spider fauna (Araneae). Zootaxa 5352: 301-357 
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 (2018) A small collection of spiders (Arachnida: Araneae) from the River Vjosa, Albania – with an updated spider checklist of Albania. Acta ZooBot Austria 155: 213-232
Bosmans R, Van Keer J, Russell-Smith A, Hadjiconstantis M, Komnenov M, Bosselaers J, Huber S, McCowan D, Snazell R, Decae A, Zoumides C, Kielhorn K-H, Oger P (2019c) Spiders of Cyprus (Araneae). A catalogue of all currently known species from Cyprus. Newsletter of the Belgian Arachnological Society 34, Suppl. 1: 1-173
Bosmans R, Van Keer K (2017) Een herziene soortenlijst van de Belgische spinnen (Araneae). Nieuwsbrief van de Belgische Arachnologische Vereniging 32: 39-69
Bosmans R. (unpubl.) Provisional list of spiders of North Africa. Database excerpt Aug. 2019
Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254
Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152
Danışman T, Kunt K B, Özkütük R S, Coşar İ (2024a) The checklist of the spiders of Turkey. Version 2024 [last updated 01 January 2024], online at http://www.spidersofturkey.info
Deltshev C, Vrenozi B, Blagoev G, Lazarov S (2011b) Spiders of Albania – faunistic and zoogeographical review (Arachnida: Araneae). Acta Zoologica Bulgarica 63: 125-144
Faúndez E I, Carvajal M A (2016) The spider genus Steatoda Sundevall, 1833 (Araneae: Theridiidae) in the State of North Dakota (USA). Revista Ibérica de Aracnología 29: 83-85
Geci D, Naumova M (2021b) A preliminary checklist of the spiders of Kosovo (Arachnida: Araneae). Ecologia Balkanica, Special Edition 4: 11-28
Komnenov M (2014) Spider fauna of the Osogovo Mt. Range, Northeastern Macedonia. Fauna Balkana 2: 1-267
Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91
Kovács G, Szinetár C (2024) Adatok a háromszöges faggyúpók (Steatoda triangulosa [Walckenaer, 1802]) biológiájához (Araneae: Theridiidae) [Data on the biology of the triangulate cobweb spider: Steatoda triangulosa [Walckenaer, 1802], (Araneae: Theridiidae)]. Biológia Savaria Természettudományi és Sporttudományi Közlemények 21: 81-104
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
Lavery A (2019) A revised checklist of the spiders of Great Britain and Ireland. Arachnology 18: 196-212
Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468
Lissner J, Scharff N (2019) Danish Spiders. Formerly online at http://www.danmarks-edderkopper.dk
Milosevic B (2002) Aranea – Popis vrsta – Checklist. Hrvatsko entomološko društvo – Inventar entomofaune Hrvatske [Aranea – List of species – Checklist. Croatian Entomological Society – Inventory of Croatian entomofauna].
Morka G H (unpubl.)
Naumova M, Lazarov S, Deltshev C (2019a) Faunistic diversity of the spiders in Montenegro (Arachnida: Araneae). Ecologica Montenegrina 22: 50-89
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
Pesarini C (unpubl.)
Pfliegler W A, Schönhofer A, Niedbała W, Vella P, Sciberras A, Vella A (2017) New records of mites (Acari) and harvestmen (Opiliones) from Malta with a preliminary checklist of Maltese Arachnida. Soil Organisms 89: 85-110
Polchaninova N, Prokopenko E (2019) An updated checklist of spiders (Arachnida: Araneae) of Left-Bank Ukraine. Arachnologische Mitteilungen 57: 60-64 & App
Ponomarev A V (2022) Spiders (Arachnida: Araneae) of the southeast of the Russian Plain: catalogue, the fauna specific features. SSC RAS Publishers, Rostov-on-Don, 640 pp.
Roberts M J (1995) Collins Field Guide: Spiders of Britain & Northern Europe. HarperCollins, London, 383 pp.
Rozwałka R, Rutkowski T, Bielak-Bielecki P (2013) New data on introduced and rare synanthropic spider species (Arachnida: Araneae) in Poland. Annales Universitatis Mariae Curie-Skłodowska, Lublin-Polonia 68: 127-150
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
Samu F, Szinetár C (1999) Bibliographic check list of the Hungarian spider fauna. Bulletin of the British Arachnological Society 11: 161-184
Stanković M, Ćurĉić M (2020) New species in the arachnofauna of Bosnia and Herzegovina from the protected habitat of Gromiţelj, Velino Selo. Archives for Technical Sciences 22: 67-78
Taberlet J-P (unpubl.)
Van Keer J, Bosselaers J, Oger P (2024) Description of four new Steatoda species (Araneae: Theridiidae) from the Mediterranean region with notes on some related species. Journal of the Belgian Arachnological Society 39(2, suppl.): 1-77
Vasiliev A I, Mikhailov K G (2023) Annotated checklist of spiders (Araneae) of the Republic of Moldova. Invertebrate Zoology 20: 307-342
Vrenozi B (2012) A collection of spiders (Araneae) in Albanian coastal areas. Arachnologische Mitteilungen 44: 41-46
Wiehle H (1937) Spinnentiere oder Arachnoidea, VIII. 26: Familie Theridiidae oder Haubennetzspinnen (Kugelspinnen). Die Tierwelt Deutschlands 33: 119-222
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
Yoshida H (2001a) The spider genera Robertus, Enoplognatha, Steatoda and Crustulina (Araneae: Theridiidae) from Japan. Acta Arachnologica 50: 31-48
Zarikian N A (2022b) New records on Salticidae and Theridiidae (Araneae) spiders from Armenia. Bulletin of the Iraq Natural History Museum 17: 169-185
Updates
| 26-07-2024 | Image insert | |
| 23-07-2024 | Distribution update | Detail |
| 11-05-2024 | Image insert | |
| 30-05-2023 | Distribution update | Detail |
| 05-01-2023 | Distribution insert | Detail |
| 16-11-2022 | Distribution update | Detail |
| 28-10-2022 | Image insert | |
| 23-10-2022 | Gallery image insert | |
| 20-06-2021 | Distribution insert | Detail |
| 26-01-2021 | Image insert | |
| 26-01-2021 | Gallery image insert | |
| 08-06-2020 | Distribution update | Detail |
| 06-05-2020 | Distribution insert | Detail |
| 24-01-2017 | Distribution update | Detail |
| 30-12-2016 | Image insert |