There are different kinds of little brown spiders in homes, barns and gardens found in the U.S. Although these spiders are small and trivial in comparison to their glamorous, exotic relatives as the Black Widow, they play in important biological role in eliminating common pests in gardens, forests, fields and houses. Funnel weaver woodlouse, Wolf and American house spiders are found common examples of small brown spiders in houses and gardens.
American House Spider
The American house spider is a type of cobweb spider, but unlike other cobweb spiders, such as the Black Widow, it's harmless. Usually brown or black, is the house spider usually in urban areas and living on a diet of flies, mosquitoes and other pests occur. It is up to 0.4 cm in length.
Funnel Weaver Spiders
Funnel weaver spiders, so named because they build funnel-shaped webs close to the ground, also known as spiders. They are brown with black, gray and brown markings. They are not usually found in the homes because they rarely leave their webs. Many common funnel weaver have bristly legs. This spider catches robber hiding in the narrow end of the funnel, which is usually protected by rocks or leaves. The spider feels the vibration when another insect, crossed the wide end of the funnel, and rushes out to grab its prey. Funnel weavers only bite if provoked and are not considered dangerous.
The woodlouse spider body is half an inch long and it took a long sickle-shaped jaws for feasting on woodlice, which chases them under logs and rocks. His front half is a reddish-brown color and its belly is gray. This spider can defend themselves when threatened, although its bite usually only causes redness around the affected area and some pain.
Wolf spiders are brown or gray, and measure from half an inch to 2 inches in length. They are commonly found around doors, house plants, basements, garages and windows. As the young wolf spiderlings hatch, they climb around to their mothers and stay there until strong enough to fend for themselves. They do not spin a web and are nocturnal hunters. Wolf spiders have a shy disposition and run away when disturbed.