Many spiders are clearly visible during the day. Web making spiders can be seen literally hanging around. However, there are many that are shy and reclusive. Brown Recluse Spiders are such a spider. During the day or in any room where there is bright lights, they will make themselves scarce. They don't like to be seen and are typically sensitive to light. They like to move under flat objects, into cracks and crevices and up under siding. These locations will be the key to solving a local infestation and treating them well will be important.