Theridiidae  Sundevall, 1833 / Cryptachaea  Archer, 1946   3 species

Cryptachaea riparia  (Blackwall, 1834)

Description

Conductor bluntly rounded distally. Epigyne posteriorly with chitinous bulge. Prosoma very dark, red-brown to black. Sternum very dark, red-brown to black. Chelicerae very dark, red-brown to black. Legs yellowish, distinctly annulated with brown-black. Opisthosoma brown with numerous dark and almost white spots, sometimes also transverse stripes, ventrally unicoloured dark brown.

Body length male: 3-4 mm
Body length female: 3-4 mm
Additional information

Near the ground in forest edges exposed to the sun, walls, rocks, etc.

Frequency: Frequent, widely distributed, difficult to find

Distribution
  Presence
  No data
Global distribution (WSC 2020): Europe, Turkey, Caucasus, Russia (Europe to Far East), China, Korea, Japan
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Austria   (no references) ||| Azerbaijan   (Otto, 2020) ||| Belarus   (Ivanov, 2013) ||| Belgium   (no references) ||| Czechia   (no references) ||| Denmark   (no references) ||| Estonia   (no references) ||| Finland   (Koponen et al., 2016) ||| France   (no references) ||| Georgia   (Otto, 2020) ||| Germany   (no references) ||| Hungary   (Samu & Szinetár, 1999) ||| Ireland   (no references) ||| Italy   (Pantini & Isaia, 2019) ||| Italy / Sardinia   (Pantini & Isaia, 2019) ||| Latvia   (Cera, 2018) ||| Liechtenstein   (no references) ||| Lithuania   (no references) ||| Montenegro   (no references) ||| Netherlands   (no references) ||| Norway   (Aakra & Hauge, 2003) ||| Poland   (no references) ||| Portugal   (Branco et al., 2019) ||| Romania   (no references) ||| Russia, Central   (no references) ||| Russia, Eastern   (no references) ||| Russia, Southern   (Otto, 2020) ||| Russia, Western   (no references) ||| Serbia   (no references) ||| Slovakia   (no references) ||| Slovenia   (Kostanjšek & Kuntner, 2015) ||| Spain   (Branco et al., 2019) ||| Sweden   (Kronestedt, 2001) ||| Switzerland   (no references) ||| Turkey (Asia)   (Danışman et al., 2019) ||| Ukraine   (Polchaninova & Prokopenko, 2019) ||| United Kingdom   (no references) |||
References

Aakra K, Hauge E (2003) Checklist of Norwegian spiders (Arachnida: Araneae), including Svalbard and Jan Mayen. Norwegian Journal of Entomology 50: 109-129 pdf

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). [N.B.: few records from this paper are not taken over and not commented] Zootaxa 4614: 201-254 pdf

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

Ivanov V V (2013) The checklist of Belarusian spiders (Arachnida, Araneae). Zoology and Ecology 4: 293-311 pdf

Kielhorn K-H (2016) Beitrag zur Kenntnis der Webspinnen und Weberknechte in Berlin und Brandenburg. Märkische Entomologische Nachrichten 17(2): 261-286 pdf

Koponen S, Fritzén N R, Pajunen T (2016) Checklist of spiders in Finland (Araneae). 6th version, December 2016, online at http://biolcoll.utu.fi/arach/checklist_of_spiders_in_Finland.htm pdf

Kostanjšek R, Kuntner M (2015) Araneae Sloveniae: a national spider species checklist. ZooKeys 474: 1-91 pdf

Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001] pdf

Locket G H, Millidge A F (1953) British spiders. Vol. II. Ray Society, London, 449 pp. pdf

Løvbrekke H (unpubl.)

Otto S (2020) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 03.2020. Internet: caucasus-spiders.info.

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) Collins Field Guide: Spiders of Britain & Northern Europe. HarperCollins, London, 383 pp. pdf

Samu F, Szinetár C (1999) Bibliographic check list of the Hungarian spider fauna. Bulletin of the British Arachnological Society 11: 161-184 pdf

Wiehle H (1937) Spinnentiere oder Arachnoidea, VIII. 26: Familie Theridiidae oder Haubennetzspinnen (Kugelspinnen). Die Tierwelt Deutschlands 33: 119-222 pdf

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 pdf

Updates
15-12-2017 Image insert
28-04-2014 Distribution update Detail
15-04-2013 Datasheet update Detail
15-04-2013 Distribution update Detail