About Uloborus walckenaerius Latreille, 1806
Description: For adult Uloborus walckenaerius, females have a body length of 3.5–6 mm (0.14–0.24 in), while males reach 3–4 mm (0.12–0.17 in). Their prosoma is dark grey, covered with white hairs that leave some dark bands exposed. They have eight eyes, arranged in two nearly parallel rows of four, with the anterior lateral eyes positioned on the front corners of the head. The abdomen is greyish-white, and continues the pattern found on the carapace. It has a brown median line, with alternating white and brown bands running along each side of the line. Distinct fluffy white tufts of hair grow on the white bands, which are very noticeable when viewed from the side. The legs vary in color from dark grey-brown to reddish-brown, and have faint white annulations. The front two pairs of legs are noticeably longer than the rear two pairs. Distribution and habitat: Uloborus walckenaerius has a widespread native distribution across the Palearctic region, and has been introduced to Cape Verde, Saint Helena, and South Africa. This spider inhabits warm, open terrain such as heathland. It weaves horizontal cribellate orb webs close to the ground; a stabilimentum is sometimes present on the web, and the spider hangs beneath the web's hub.
