Linyphiidae  Blackwall, 1859 / Leptorhoptrum  Kulczynski, 1894   1 species

Leptorhoptrum robustum  (Westring, 1851)

Description

Cymbium shorter than palpal tibia. Embolus strongly sclerotised. Paracymbium very simple. Epigyne with broad epigynal plate, posterior margin ± straight. Receptacula seminis small and spheroidal, visible through epigyne. Prosoma brown, with dark margin and radial stripes. Sternum brown, tinged with black. Chelicerae brown, robust. Legs yellow-brown, ± short, robust. Opisthosoma grey to almost black.

Body length male: 3-4.2 mm
Body length female: 3-4.8 mm
Additional information

In moss and leaves of damp, cool localities from lowland up to alpine zone.

It has been described that this small species repeatedly bite sewage plant workers (Duffey & Green 1975). It is highly unlikely that a 3 mm linyphiid can bite humans, but other effects such as allergic reactions cannot be excluded. 

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2018): North America, Europe, Russia (European to Far East), Japan
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
mainly in summer
Figures
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)

Cera I (2018) The checklist of Latvian spiders (Arachnida: Araneae). Environmental and Experimental Biology 16: 139-152 pdf

Duffey E, Green M B (1975) A linyphiid spider biting workers on a sewage-treatment plant. Bull Br Arachnol Soc 3: 130–131

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

Lissner J, Jensen J-K, Hansen L J, Simonsen W, Kelduni R, Nissen K (2016b) An updated checklist of spiders (Araneae) of the Faroe Islands. Norwegian Journal of Entomology 63: 197-240 pdf

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

Løvbrekke H (unpubl.)

Nentwig W, Gnädinger M, Fuchs J, Ceschi A (2013) A two year study of verified spider bites in Switzerland and a review of the European spider bite literature. Toxicon 73: 104-110

Pantini P, Isaia M (2017) Checklist of the Italian spiders (version May 2017). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94 pdf

Roberts M J (1987) The spiders of Great Britain and Ireland. Volume 2: Linyphiidae and checklist. Harley Books Colchester

Wiehle H (1956) Spinnentiere oder Arachnoidea, X. 28: Familie Linyphiidae-Baldachinspinnen. Tierwelt Deutschlands 44: 1-337

World Spider Catalog (2018) World Spider Catalog, version 19.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (15.07.2018) doi: 10.24436/2

Updates
25-02-2014 Image insert
26-01-2014 Image insert
26-11-2013 Datasheet update Old value