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Theridiidae  Sundevall, 1833 / Coleosoma  O. Pickard-Cambridge, 1882   1 species

Coleosoma floridanum  Banks, 1900

WSC LSID urn:lsid:nmbe.ch:spidersp:007294

Key to genera | Key to species

Description
Male

Dark yellowish brown. Opisthosoma with darker mottlings and scattered white spots dorsally, anterior end surrounded by a hard sclerite narrow dorsally but extending more than halfway along the ventral surface.

Prosoma length: 0.7 mm, prosoma width: 0.5 mm.

Body length male: 1.8-2.2 mm
Female

Prosoma, sternum and legs yellowish brown, prosoma and sternum with narrow dark borders. Opisthosoma oval with spinnerets almost posterior, pale, dorsally with 3 pairs of irregular white patches followed by a median band of white patches.

Prosoma length: 0.8 mm, prosoma width: 0.6 mm.

Body length female: 1.7-2.1 mm
Additional information

In the wild, but also in buildings. This species of American origin is not native to Europe (alien species). It had been introduced to Europe at least once and did establish.

Frequency: Very rarely found

Distribution
  Presence
  No data
Global distribution (WSC 2021): North, Central and South America. Introduced to Europe, Macaronesia, West Africa, Seychelles, India, Philippines, China, Japan, Pacific Is.
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
species

male Pedipalp, ventral view
(Saaristo 1978)

species

male Pedipalp, ventral view
(Saaristo 1978)

species

male Pedipalp, ventral view
(Saaristo 1978)

species

female Pedipalp, ventral view
(Emerit & Ledoux 2008)

species

female Epigyne, ventral view
(Saaristo 1978)

species

female Epigyne, ventral view
(Emerit & Ledoux 2008)

species

female Epigyne/vulva
(Pfliegler 2014)

species

female Vulva, dorsal view
(Saaristo 1978)

species

Sternum
(Saaristo 1978)

species

Habitus, lateral view
(Saaristo 1978)

Distribution List
Austria   (no references) ||| Czechia   (Sestáková et al., 2013) ||| Denmark   (Lissner & Scharff, 2019) ||| Finland   (Koponen et al., 2016) ||| France   (no references) ||| Germany   (no references) ||| Hungary   (Pfliegler, 2014) ||| Netherlands   (no references) ||| Slovakia   (Sestáková et al., 2013) ||| Switzerland   (no references) ||| United Kingdom   (no references) |||
References

Emerit M, Ledoux J-C (2008) Arrivée en France de Coleosoma floridanum Banks. Revue Arachnologique 17: 53-55 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

Lissner J, Scharff N (2019) Danish Spiders. Online at http://www.danmarks-edderkopper.dk pdf

Pfliegler W P (2014) Records of some rare and interesting spider (Araneae) species from anthropogenic habitats in Debrecen, Hungary. e-Acta Naturalia Pannonica 7: 143-156 pdf

Saaristo M I (1978) Spiders (Arachnida, Araneae) from the Seychelles Islands, with notes on taxonomy. Annales Zoologici Fennici 15: 99-126 pdf

Sestáková A, Christophoryova J, Korenko S (2013) A tropical invader, Coleosoma floridanum, spotted for the first time in Slovakia and the Czech Republic (Araneae, Theridiidae). Arachnologische Mitteilungen 45: 40-44 pdf

WSC (2021) World Spider Catalog. Version 21.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (03.01.2021) doi: 10.24436/2 pdf

Updates
19-01-2021 Distribution update Detail
01-05-2020 Datasheet update Detail
24-01-2017 Distribution update Detail
12-08-2014 Image insert
29-07-2014 Distribution update Detail
10-06-2014 Image insert
13-05-2014 Distribution update Detail