Family: Theridiidae Sundevall, 1833 | key
Genus: Theridion Walckenaer, 1805 | key
    Taxonomy
    WSC: Species ext
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    Theridion hemerobium Simon, 1914      [urn:lsid:nmbe.ch:spidersp:008414]
    Description male

    Male palp with striking median apophysis. Conductor with terminal hook. Prosoma light yellow, with dark median stripe. Prosoma 1.1-1.8 mm long. Opisthosoma with whitish pattern, bordered with grey. Epigastric area markedly bulging.

    Body length male: 2.4-3.88 mm

    Description female

    Epigyne with very small central opening. Prosoma 1.1-2 mm long. Sternum yellowish white, darker on margin. Legs yellow white, with dark annulations. Characters as in male.

    Body length female: 3-4.45 mm

    Additional information

    Usually near water: river banks, pond littorals, sides of lakes, bridges on rivers, marshes, also in pine or oak forests, gardens, among vegetation or stones.

    Distribution
      Presence
      No data

    Global distribution (World Spider Catalog 2017): USA, Canada, Europe, Turkey

    Phenology

    JanFebMarAprMayJunJulAugSepOctNovDec
    male female
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    References

    Blagoev G, Deltshev C, Lazarov S (2015) The Spiders (Araneae) of Bulgaria. National Museum of Natural History, Bulgarian Academy of Sciences, online at http://www.nmnhs.com/spiders-bulgaria/ (accessed on 09.03.2015)

    Bosmans R, Vanuytven H, Van Keer J (1994) On two poorly known Theridion species, recently collected in Belgium for the first time (Araneae: Theridiidae). Bull Br Arachnol Soc 9: 236-240.

    Knoflach B, Rollard C, Thaler K (2009) Notes on Mediterranean Theridiidae (Araneae) - II.  In: Stoev P, Dunlop J, Lazarov S (Eds) A life caught in a spider's web. Papers in arachnology in honour of Christo Deltshev. ZooKeys 16: 227-264.

    Le Peru B (2011) The spiders of Europe, a synthesis of data: Volume 1 Atypidae to Theridiidae. Mém Soc Linn Lyon 2: 1-522.

    Nolan M (2013) First Irish records of Theridion hemerobius Simon, 1914 (Araneae: Theridiidae) Bulletin of the Irish Biogeographical Society 37: 45-55.

    Pantini P, Isaia M (2016) Checklist of the Italian spiders (version April 2016). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94

    Polchaninova N Y, Prokopenko E V (2013) Catalogue of the spiders (Arachnida, Aranei) of Left-Bank Ukraine. Arthropoda Selecta (Suppl.) 2: 1-268.

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

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

    World Spider Catalog (2017) World Spider Catalog, version 18.0. Natural History Museum Bern, online at http://wsc.nmbe.ch, accessed on 23.01.2017