If you go into a cave today ....

The European cave spider, Meta menardi.
This species lives exclusively in permanently dark, damp habitats such as caves (including sea caves), mines, sewers, ice-houses, damp cellars, limestone pavement, hollow trees and railway tunnels. M. menardi produces a large orb web, but usually lives on the wall of its habitat. Prey items include hibernating Lepidoptera, mosquitoes, slugs, isopods, millipedes and beetles. Large, white, tear-shaped egg-sacs are suspended from the roof of the spider's habitat between September and February, these persist for a long period even after the spiderlings emergence.