Uloborus walckenaerius Latreille, 1806
Description
Prosoma densely provided with white hairs, with grey to black longitudinal bands. Sternum black. Legs dark grey-brown to red-brown and vaguely annulated with white. Legs I and II especially long. Metatarsus IV with calamistrum consisting of 30-34 bristles. Opisthosoma whitish grey with continuation of prosoma pattern, fluffy haired.
Body length male: 4-5 mmBody length female: 6-8 mm
Additional information
in warm, open localities, between heath or gorse. Builds horizontal orb webs (diameter 13-18 cm) with cribellate spiral (gleaming bluish), mostly close (10 cm) above ground, sometimes with radial stabilimentum, spider hangs beneath hub. Longish cocoon (70-100 eggs) on border of web
Frequency: Rare
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp
(Drensky 1939)
Pedipalp
(Wiehle 1953)
Pedipalp, ventral view
(Locket & Millidge 1951)
Pedipalp
(Roberts 1995)
Pedipalp
(Loksa 1969)
Epigyne
(Loksa 1969)
Epigyne
(Wiehle 1953)
Epigyne
(Locket & Millidge 1951)
Epigyne
(Crespo et al. 2009b)
Epigyne
(Wiśniewski & Dawidowicz 2017)
Vulva
(Brignoli 1979b)
Vulva
(Wiehle 1953)
Vulva, dorsal view
(Wiśniewski & Dawidowicz 2017)
Vulva, ventral view
(Wiśniewski & Dawidowicz 2017)
Prosoma
(Wiehle 1953)
Habitus, lateral view
(Wiehle 1953)
Habitus
(Loksa 1969)
Habitus, dorsal view
(Drensky 1939)
Prosoma, dorsal view
(Heimer & Nentwig 1991)
Eyes, dorsal view
(Loksa 1969)
Metatarsus IV
(Wiehle 1953)
Spinnerets, cribellum
(Wiehle 1953)
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)
Bosmans R, Van Keer J, Russell-Smith A, Kronestedt T, Alderweireldt M, Bosselaers J, De Koninck H (2013) Spiders of Crete (Araneae). Nieuwsbr Belg Arachnol Ver 28: 1-147
Brignoli P M (1979b) Ragni d'Italia XXIX. Dysderidae nuovi o interessanti (Araneae). Boll Soc Entomol Ital 111: 17-26
Crespo L C, Cardoso P, Henriques S, Gaspar C (2009b) Spiders (Araneae) from Porto Santo (Madeira, Portgal): Additions to the current knowledge. Boletín de la Sociedad Entomologica Aragonesa 45: 471-475
Danışman T, Kunt K B, Özkütük R S (2019) The checklist of the spiders of Turkey. Version 2018 [last updated 1 January 2019], 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
Drensky P (1939) Die Spinnenfauna Bulgariens. III. Unterordnung Arachnomorphae, II Gruppe Trionychia; Familien: Urocteidae, Uloboridae, Sicaridae, Pholcidae, Eresidae. Mitt Nat Inst Sofia 12: 231-252
Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin 
Helsdingen P J van (2010a) Araneae. In: Fauna Europaea Database (Version 2010.1), online at www.european-arachnology.org
Helsdingen P J van (2013) A quick scan of the spider fauna of the European part of Turkey. Nieuwsbrief SPINED 33: 29-38
Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91
Locket G H, Millidge A F (1951) British Spiders 1. Ray Soc London
Loksa I (1969) Pokok I-Araneae I. Fauna Hungariae 97: 2.1-2.133
Otto S (2017) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 08.2017. Internet: caucasus-spiders.info.
Pantini P, Isaia M (2018) Checklist of the Italian spiders (version June 2018). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94
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
Roberts M J (1995) Spiders of Britain and Northern Europe. Collins Field Guide Bath
Wiehle H (1953) Spinnentiere oder Arachnoidea (Araneae), IX. Orthognatha-Cribellata-Haplogynae, Entelegynae (Pholcidae, Zodariidae, Oxyopidae, Mimetidae, Nesticidae). Tierwelt Deutschlands 42
Wiśniewski K, Dawidowicz A (2017) Uloborus walckenaerius and Oxyopes heterophthalmus in Poland (Araneae: Uloboridae, Oxyopidae). Arachnologische Mitteilungen 54: 48-51
World Spider Catalog (2019) World Spider Catalog, version 20.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.01.2019) doi: 10.24436/2