Black widow spiders are most recognized for the red hourglass shape under their abdomen. This spider gets its name from the popular belief that the female black widow spider eats the male after mating, although this rarely happens. Black widows are poisonous when ingested during the first 17 days of their life.
Brown recluse spiders have a characteristic dark brown violin marking on their back. These spiders often infest cedar shake roofs and spin irregular webs, which are used as a retreat.
The common house spider is usually the spider most often encountered indoors. It is a nuisance pest, probably more because of its webs than the spider itself. The house spider is found worldwide and is common throughout the United States and Canada.
About 300 species of jumping spiders are found in the United States and Canada. Unlike most spiders, jumping spiders are active during the daytime and seem to like sunshine.
Long-bodied cellar spiders are commonly referred to as “daddy-long-legs” because of their very long, thin legs, and as their name implies, are found in dark and damp places like cellars and basements. There are about 20 species of cellar spiders in the United States and Canada.
Unlike most spiders, wolf spiders don’t hunt with webs. Instead, they chase their prey using their fast running ability. These spiders are often big and hairy which alarms some people, but they are primarily nuisance pests. Over 100 species of wolf spiders are found in the United States and Canada.