Summary details for Lace Weaver Spider (Amaurobius similis)

Species Details

Species name
Amaurobius similis
Common name
Lace Weaver Spider
Synonym
Ciniflo similis Blackwall, 1861
Taxonomy
Animalia :: Araneae :: Amaurobiidae
habitat
decaying wood

Distribution

The species is widespread in most of England and Wales, becoming more scattered in Scotland. It is a Holarctic species that is widely distributed in north-western Europe.

Habitat and ecology

The spider probably occurs in almost every house and outhouse in the country. It makes its characteristic web of cribellate silk in cracks in the brickwork, under the eaves, under undisturbed rubble or debris and between cracks in wooden sheds and fences, etc. (Roberts 1995). Channels carrying cords for sash windows are a favoured retreat inside houses (J. Newton, pers. comm.). It is also occasionally found under bark in more natural habitats like woods especially where these are near habitation. It is possible that it replaces A. fenestralis in these situations. Adults occur throughout the year but both sexes peak in the autumn, and females are recorded again in numbers during the spring and early summer.

Status

Common, possibly less so in the north. Authors of profile: Peter Harvey & Geoff Oxford

Reference

Roberts, M.J. 1995. Spiders of Britain & Northern Europe. London: HarperCollins.

Stats

First recorded
1893
Last recorded
2025
Total records
4,367
Total visits
4,301

Conservation status

Amaurobius similis
SourceReporting categoryDesignationDate designatedComments
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)Red listing based on 2001 IUCN guidelinesLeast concern01/09/2017

Spatial distribution - hectad map

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Temporal distribution - records by year

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Temporal distribution - records by week