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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.
Whilst it is very similar to A. fenestralis they can often be identified from the habitat. If in a garden or associated with houses then it is almost certainly A. similis, however if in woodland it is highly likely to be A. fenestralis.
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.
Adult females all year; males from June to November.
Widespread and frequent in Britain
Common in Leicestershire and Rutland.
3,759 British records for this species to 2015.
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