Theridiidae  Sundevall, 1833 / Sardinidion  Wunderlich, 1995   1 species

Sardinidion blackwalli  (O. Pickard-Cambridge, 1871)

Description

Embolus very long, forming a large loop. Epigynal groove longer than wide. Prosoma yellow, with darkened head region and margin. Sternum blackish, brighter median. Chelicerae yellowish. Legs yellowish, bright with slender brown rings. Opisthosoma with very variable brown-black pattern, dark spot in anterior third of opisthosoma large (sometimes extended to whole dorsal side) and with convex anterior part.

Body length male: 2.3-3 mm
Body length female: 2.5-3.0 mm
Additional information

mostly under bark

Frequency: Frequent, but often overlooked

Distribution
  Presence
  No data
Global distribution (WSC 2020): Europe, North Africa
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Algeria   ( Bosmans, unpubl.; ) ||| Austria   ( no references ) ||| Belgium   ( no references ) ||| Bulgaria   ( Blagoev et al., 2018; ) ||| Czechia   ( no references ) ||| France   ( no references ) ||| Germany   ( no references ) ||| Greece   ( no references ) ||| Hungary   ( no references ) ||| Ireland   ( no references ) ||| Italy   ( Pantini & Isaia, 2019; ) ||| Italy / Sardinia   ( Pantini & Isaia, 2019; ) ||| Italy / Sicily   ( Pantini & Isaia, 2019; ) ||| Luxembourg   ( Christian, 2014; Kreuels et al., 2019; ) ||| Montenegro   ( no references ) ||| Netherlands   ( no references ) ||| Poland   ( no references ) ||| Portugal   ( no references ) ||| Romania   ( no references ) ||| Russia, Central   ( no references ) ||| Russia, Eastern   ( no references ) ||| Serbia   ( no references ) ||| Slovakia   ( no references ) ||| Slovenia   ( Kostanjšek & Kuntner, 2015; ) ||| Spain   ( no references ) ||| Switzerland   ( no references ) ||| Tunisia   ( Bosmans, unpubl.; ) ||| Turkey (Asia)   ( Danışman et al., 2019; ) ||| Turkey (Europe)   ( Danışman et al., 2019; ) ||| Ukraine   ( Polchaninova & Prokopenko, 2019; ) ||| United Kingdom   ( no references ) |||
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. (unpubl.) Provisional list of spiders of North Africa. Database excerpt Aug. 2019

Christian S (2014) The first record of the tangle-web spider Sardinidion blackwalli (O. P.-Cambridge, 1871) in Luxembourg (Arachnida, Theriidae). Bulletin de la Société des naturalistes luxembourgeois 115: 255-257 pdf

Crespo L C, Domènech M, Enguídanos A, Malumbres-Olarte J, Cardoso P, Moya-Laraño J, Frías-López C, Macías-Hernández N, De Mas E, Mazzuca P, Mora E, Opatova V, Planas E, Ribera C, Roca-Cusachs M, Ruiz D, Sousa P, Tonzo V, Arnedo M A (2018) A DNA barcode-assisted annotated checklist of the spider (Arachnida, Araneae) communities associated to white oak woodlands in Spanish National Parks. Biodiversity Data Journal 6(e29443): 1-459 pdf

Danışman T, Kunt K B, Özkütük R S (2019) The checklist of the spiders of Turkey. Version 2019 [last updated 1 June 2019], online at http://www.spidersofturkey.info

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

Helsdingen P J van (2010a) Araneae. In: Fauna Europaea Database (Version 2010.1), online at www.european-arachnology.org

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

Locket G H, Millidge A F (1953) British Spiders 2. Ray Soc London

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 (1995) Spiders of Britain and Northern Europe. Collins Field Guide Bath

Wiehle H (1937) Spinnentiere oder Arachnoidea, VIII. 26: Familie Theridiidae oder Haubennetzspinnen (Kugelspinnen). Tierwelt Deutschlands 33

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

Updates
20-05-2020 Distribution update Detail
15-10-2019 Distribution update Detail
05-12-2018 Image insert
04-12-2018 Distribution update Detail
16-05-2018 Distribution update Detail