Males are large and fast-moving wanderers, searching for both prey and females to mate with. They tend to frighten people because of their size and speed, but mostly for their tendency to crawl over body parts to get to where they want to go. They have spindly legs and look different from females. Females have fat, bulbous bodies and thicker legs. Females prefer to stay in their webs, hiding away in the crevice of a wall or floor. They do not produce a sticky web. Instead, the spider silk is teased to form a mess of threads that entangle insects walking across it. Females build the silk into large, flat sheets of webbing. Over time, the web becomes littered with dust, debris and dead carcasses of meals, but it does not bother the spider.