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Description of Drapetisca socialis (Invisible spider)
Female 3 to 5 mm.
Abdomen white with an irregular, vaguely outlined dark pattern on top. Sides dark.
Carapace light brown to dark brown with a dark, forked median band, dark radial spots and a dark band along the edge.
Legs and palps clearly light-dark annulated.
Male 3 to 4 mm.
Markings and colours almost identical to the female.
Mainly tree trunks. In late autumn sometimes on the forest floor as well.
Common in the whole of Europe.
Summer and autumn.