Hacklemesh Weaver(with prey)

Description:

amaurobius spiders vary in body size from 7 mm to 12 mm, with large, strong legs. While the species are similar, with the young virtually indistinguishable, A. similis tends to be larger and darker in colouration when an adult, and prefers the indoors. The smaller, lighter A. fenestralis is rarely found inside, and is often observed on outside walls, or on trees, especially under loose bark. Both species have V-shaped markings on their abdomens, with A. fenestralis having two or three of these, and A. similis usually having four. For precise identification, spider genitalia may need to be checked for characteristic differences in the species.