that is indeed a spider matt31
Females reach a body length of 22 mm, males up to 15 mm. This species is much darker than others of the same genus. While subadult spiders have a greyish opisthosoma with a marking similar to Segestria senoculata, adults are of a uniform black, sometimes with a green metallic shine, especially on the fangs.[1] reflect with a striking green. The sexes are similar. Adults occur from June to November.
[ Habits
They spin a tubular web, often in cracks of buildings. Six or more silken lines radiate from it, and the spider waits in the entrance, touching the lines with the frontal six legs. Prey triggering these lines get caught, and the spider immediately retreats again to eat it in its retreat. They hunt nocturnal insects such as moths and cockroaches, but disdain woodlice. Bees and wasps are always bitten at the head end, so the sting will face away from the spider.
christ