Lace-weaver Spider - Amaurobius similis

Alternative names
Lace Weaver Spider

Female to 12 mm; male to 8 mm. Distinctive, with a glossy brown carapace and legs and a velvety abdomen with a dark anterior wedge-shaped marking surrounded by cream. It often lives around buildings where it occupies holes in walls, fences, window frames, etc. 

Similar Species

Whilst it is very similar to A. fenestralis they can inferred from the habitat. If in a garden or associated with houses then it is almost likely to be A. similis, however if in woodland it is likely to be A. fenestralis.

Identification difficulty

Frequently seen around houses and gardens. These spiders produce a bluish coloured silk around the entrance to holes and crevices on just about every wall you look at.

When to see it

Adult females all year; males from June to November.

UK Status

Widespread and frequent in Britain

VC55 Status

Common in Leicestershire and Rutland.

Further Information

3,759 British records for this species to  2015.

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map