Coleosoma floridanum Banks, 1900
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 mmFemale
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 mmAdditional 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
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, ventral view
(Saaristo 1978)
Pedipalp, ventral view
(Saaristo 1978)
Pedipalp, ventral view
(Saaristo 1978)
Pedipalp, ventral view
(Emerit & Ledoux 2008)
Epigyne, ventral view
(Saaristo 1978)
Epigyne, ventral view
(Emerit & Ledoux 2008)
Epigyne/vulva
(Pfliegler 2014)
Vulva, dorsal view
(Saaristo 1978)
Sternum
(Saaristo 1978)
Habitus, lateral view
(Saaristo 1978)
Distribution List
References
Emerit M, Ledoux J-C (2008) Arrivée en France de Coleosoma floridanum Banks. Revue Arachnologique 17: 53-55 
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
Lissner J, Scharff N (2019) Danish Spiders. Online at http://www.danmarks-edderkopper.dk
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
Řezáč M, Růžička V, Hula V, Dolanský J, Machač O, Roušar A (2021) Spiders newly observed in Czechia in recent years – overlooked or invasive species? BioInvasions Records 10: 555-566
Saaristo M I (1978) Spiders (Arachnida, Araneae) from the Seychelles Islands, with notes on taxonomy. Annales Zoologici Fennici 15: 99-126
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
WSC (2021) World Spider Catalog. Version 22.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (22.09.2021) doi: 10.24436/2