Often times people wonder how those little tiny spiders get inside their house.  The kind that run all over the place at night or in the morning time or on the grass when you are mowing your yard and those little spiders that run in front of your lawnmower in spring this is the process of infestations usually it starts the winter before were spiders like this one, a mother wolf spider will pull up against the house for the warmth that the foundation is actually giving off. If we look carefully we can see her nest underneath the siding of the home as we see here and that tunnel entrance now she doesn’t lay a web down to catch insects she runs down other insects so she comes out here in hunts and goes into the wall and haunts insects but because her lair is up in the wall when her eggs hatch they’ll go in the crawl space for further into the house giving you pressure in the spring.