Walnut Orb-web Spider

Nuctenea umbratica

Common & widespread in Britain.

Females are seen all year round, Males only in Summer & are mainly nocturnal.

Its colour ranges from reddish-brown to black, with dark yellowish-green leaf-like markings on its opisthosoma, where small dents are visible.

This Spider hides outside buildings during the day, in wall crevices or under loose bark.

Females present all year and Males mostly appearing during the summer.

This Spider has a flattened body which helps it to hide in cracks and crevices.

Walnut orb-weaving Spiders can conceal themselves in very confined spaces.

This acts as a defensive advantage, increasing the number of locations where an effective orb web can be constructed.