Linyphiidae  Blackwall, 1859 / Improphantes  Saaristo & Tanasevitch, 1996   8 species

Improphantes improbulus  (Simon, 1929)

Description

Male palp with tapering lamella in distal third, pointed distally. Epigyne with strongly developed epigynal plates, enclosing scapus collar-like, therefore also visible from ventral, posterior part of scapus almost 4 times as wide as long. Prosoma yellow-brown, with or without dorsal spot. Legs clay-yellow. Opisthosoma grey-white to black.

Body length male: 2-2.3 mm
Body length female: 2.1-2.7 mm
Additional information

in litter layer and small caves

Troglophile species (Mammola et al. 2018)

Character states from linyphiid key
Distribution
  Presence
  No data
Distribution comment: Albania: Deltshev et al. (2011b): as "I. pr. improbulus"
Global distribution (WSC 2018): Europe, Caucasus, Central Asia (Russia, Kazakhstan), China
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
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)

Deltshev C, Vrenozi B, Blagoev G, Lazarov S (2011b) Spiders of Albania – faunistic and zoogeographical review (Arachnida: Araneae). Acta Zoologica Bulgarica 63: 125-144

Heimer S (1978) Zur intragenerischen Isolation der Arten der Gattung Pocadicnemis Simon 1884. Zool Abh Staatl Mus Tierk Dresden 35: 101-112

Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin pdf

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

Mammola S, Cardoso P, Ribera C, Pavlek M, Isaia M (2018b) A synthesis on cave-dwelling spiders in Europe. Zoological Systematics and Evolutionary Research 56: 301-316 pdf

Miller F, Svaton J (1978) Einige seltene und bisher unbekannte Spinnenarten aus der Slowakei. Annotnes Zool Bot Bratislava 126: 1-19

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 (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

Staudt A, Weber D, Nährig D (2013) Webspinnen (Arachnida,  Araneae) aus Höhlen des Grossherzogtums Luxemburgs. Ferrantia 69: 115-157

Thaler K (1986c) Vier bemerkenswerte Leptyphantes-Arten aus dem Mittelmeergebiet und aus Vorderasien (Arachnida: Aranei, Linyphiidae). Sber öst Akad Wiss (I) 194: 311-325

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
10-05-2018 Distribution update Old value
20-05-2014 Distribution update Old value
04-12-2013 Distribution update Old value
28-04-2013 Distribution update Old value