Summary for Tegenaria agrestis (Araneae)

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National Distribution

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Identification difficulty rating: 3
Name: Tegenaria agrestis
Authority: (Walckenaer, 1802)
Order: Arachnida: Araneae
Family: Agelenidae
IUCN status: LC

Records: 1051
First Record: 1949
Latest Record: 2017

1992-on hectads: 152
Pre-1992 hectads: 96
Total hectads: 207

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About this species

Recorded altitude range
0m to 280m

Species text

First recorded in Britain from Wilverley Plain, Hampshire in 1949, this species has colonised northwards over the last half century (Merrett 1979). It now has a wide but patchy Distribution: through much of England and Wales, and is colonising Scotland (e.g. Stewart 1987). Elsewhere in Europe it is widespread, extending into Russia, Ukraine and Kirghizia (Maurer 1992). T. agrestis was introduced into the Pacific North-west region of the United States in the early 1900s.

Habitat and ecology
T. agrestis in Britain is usually found among sparse grassy vegetation and under stones, particularly on waste ground (e.g. in the centre of cities) and alongside railway tracks. The sheet web extends from the retreat and is supported by vegetation. The egg-sac is a multi-layered structure, one layer of which is often composed of mud and other debris. Although not normally a house spider in Europe, this habitat is mentioned by De Blauwe & Baert (1981) for the species in Belgium and it has occurred regularly in a house in Bedfordshire (I. Dawson, pers. comm.). In North America, T. agrestis is very much associated with houses and their environs, commonly frequenting wood piles, garages and spaces beneath buildings (Akre & Myhre 1991). Here a number of serious spider bites have been attributed to T. agrestis (Akre & Myhre 1991), although there are no such records from Europe. Adults of both sexes are found mainly in late summer and autumn.

A successful and colonising species.

Original author of profile: G. Oxford.

Text based on Harvey, P.R., Nellist, D.R. & Telfer, M.G. (eds) 2002. Provisional atlas of British spiders (Arachnida, Araneae), Volumes 1 & 2. Huntingdon: Biological Records Centre.  References

Adult Season

Adult Season Data (based on 324 records with adult season information)


background methodology

Broad Habitat Data (based on 451 records with habitat information)

Broad subhabitat Data (based on 7 records with subhabitat information)

Structural Habitat Data (based on 223 records with structural habitat information)

Habitat Detail and Method (based on 211 records with habitat detail and method information)

Recorded management for locations with Tegenaria agrestis

Recorded substrate and hydrology for locations with Tegenaria agrestis


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