I think that's right; in any case it's not poisonous.There are three poisonous spiders in the US, the black widow, the brown widow and the brown recluse. Of these the brown recluse is the one that causes the most bites, because they are often found in the house. The widows are found outside, often under rocks, empty pots or outside structures. They are shy creatures and seldom bite, not unless they are hard pressed. The brown recluse is a small brown spider with a fiddle pattern on the back.