Zygiella atrica, like other Zygiella species, builds an orb web

Spider web

A spider web, spiderweb, spider's web or cobweb is a device built by a spider out of proteinaceous spider silk extruded from its spinnerets....

 with two missing sectors, and a signalling thread in the center of those, leading to its hideout, whereas young spiders build a complete web.

Unlike Z. x-notata

Zygiella x-notata

Zygiella x-notata is a spider in the family Araneidae.-Description:Z. x-notata females are up to 11mm in size, males up to 7mm. The prosoma is yellow-brown, with a leaf-like mark on the opisthosoma. In moderate climate, adults appear from July to October, sometimes even into December...

, this spider is found away from houses, on bushes and rocky sites away from human habitation. It is also more brown.