Black lace weaver spider, Amaurobius ferox

Body size

Female to 16mm; male to 12mm.


Vague, ghost-like pattern on the dark abdomen. The male is slimmer but otherwise similar to the female (photo).

Habitat, range and season

Woodland and gardens; under loose bark, stones and logs; in cellars and old rubbish dumps. Europe and N America. Adult females all year; males in spring and autumn.


An irregular, lace-like web around a rudimentary funnel.

First recorded in the UK

Possibly 1678.

Bite reports

'The bite, on the palm of the hand, was very painful. There was a white patch on the bite area, and a fairly large area of reddening around it.'

'Swelling for 3 days, nausea.'

UK spider bites