Theridiidae  Sundevall, 1833 / Cryptachaea  Archer, 1946   4 species

Cryptachaea blattea  (Urquhart, 1886)


Pedipalp with short embolus that lies against conductor. Prosoma dark yellow to dark brown or black. Sternum dark brown. Legs whitish yellow, with dark brown annulations. Opisthosoma with black and white pattern, and with small tubercle situated just posterior to mid-dorsal point.

Body length male: 1.7-2.4 mm

Epigyne with protruding knob and roundish opening. Colouration as in males. Opisthosoma: dorsal tubercle less pronounced.

Body length female: 2.2-3.2 mm
Additional information

In Europe found in gardens and parks. This species probably originated in Macaronesia and is not native to Europe (alien species). It had been introduced to Europe at least once and did establish.

  No data
Global distribution (WSC 2021): Africa. Introduced to USA, Chile, Azores, Europe, Australia, New Zealand, Hawaii
Distribution List
Albania   (Deltshev et al., 2011b) ||| Belgium   (no references) ||| France   (no references) ||| Germany   (no references) ||| Ireland   (Nolan, 2020) ||| Netherlands   (no references) ||| Portugal   (Branco et al., 2019) ||| Switzerland   (no references) ||| United Kingdom   (no references) |||

Bink J (2014a) Cryptachaea blattea (Urquhart, 1886) (Araneae, Theridiidae) voor het eerst waargenomen in Nederland. Nieuwsbrief SPINED 34: 11 pdf

Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254 pdf

Crespo L C, Cardoso P, Henriques S, Gaspar C (2009b) Spiders (Araneae) from Porto Santo (Madeira, Portgal): Additions to the current knowledge. Boletín de la Sociedad Entomologica Aragonesa 45: 471-475 pdf

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

Hänggi A, Straub S (2016) Storage buildings and greenhouses as stepping stones for non-native potentially invasive spiders (Araneae) - a baseline study in Basel, Switzerland Arachnologische Mitteilungen 51: 1-8 pdf

Le Divelec, Courtial C, Rollard C (2018) Cryptachaea blattea (Urquart, 1886) and Pseudomaro aenigmaticus (Denis, 1966): deux araignées nouvelles pour la France (Araneae: Theridiidae, Linyphiidae). Revue Arachnologique (2) 5: 2-6 pdf

Marriott D (2012) Cryptachaea blattea (Urquhart, 1886) a theridiid new to Great Britain. Newsletter of the British Arachnological Society 123: 9-10 pdf

Nolan M (2020) Notes on ‘Irish’ spiders (Arachnida): Atypus affinis Eichwald (Atypidae) and Entelecara errata O. P.-Cambridge (Linyphiidae) removed from the Irish list; Cryptachaea blattea (Urquhart) (Theridiidae) new to Ireland. Bulletin of the Irish Biogeographical Society 44: 189-204 pdf

Sührig A (2010) Cryptachaea blattea, eine weitere nach Deutschland eingeschleppte Spinnenart (Araneae: Theridiidae). Arachnologische Mitteilungen 39: 1-4 pdf

Vink C J, Dupérré N, Paquin P, Fitzgerald B M, Sirvid P J (2009) The cosmopolitan spider Cryptachaea blattea (Urquhart 1886) (Araneae: Theridiidae): Redescription, including COI sequence, and new synonymy. Zootaxa 2133: 55-63 pdf

WSC (2021) World Spider Catalog. Version 22.0. Natural History Museum Bern, online at (29.05.2021) doi: 10.24436/2 pdf

16-11-2020 Distribution insert Detail
07-01-2019 Distribution update Detail
02-02-2017 Image insert
02-02-2016 Distribution update Detail
08-01-2015 Distribution update Detail
04-12-2013 Distribution update Detail