Spiders - Class Arachnida; Order Araneae

·         Common household spiders spin webs over lamps, in corners, and in basements

·         Spiders are considered beneficial because they feed on insects

·         Many spiders are associated with moisture and because of this they are found in basements, crawl spaces, and other damp parts of buildings

·         Others live in warm, dry places so are found in subfloor air vents, in upper corners of rooms, or in attics

·         Most species hide in cracks, darkened areas, or other retreats that they construct of silk